Bitcoin ATM Montana, MT United States

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BitCoins stolen from Mt. Box

Today I had all of my bitcoins that were in my mt. Gox account stolen in the span of about 30 minutes. I was checking my account before work and logged out. When I got to work I had an email saying a withdrawal was made and that if I did not authorize this to contact them immediately. I did and the response they gave me was that it was too late and nothing they can do. They said I should contact the police. Like my local police dept have any idea what a bitcoin is let alone how to start an investigation. Luckily for me I have a very small mining operation and they only got 1.5 bitcoins which is about $100. I think they have a security issue in their android app which I downloaded and since disabled.
I just wanted to issue a heads up to all my fellow bitcoin miners to be extra careful.
submitted by DisneyDad to Bitcoin [link] [comments]

Gesprächsrunde zu Bitcoin und Blockchain mt Joerg Platzer| Black Box: Tech #2 by digital kompakt

Gesprächsrunde zu Bitcoin und Blockchain mt Joerg Platzer| Black Box: Tech #2 by digital kompakt submitted by Jackieknows to BitcoinDE [link] [comments]

[USA-IL] [H] EVGA GTX 1080 Ti 11 GB [W] Paypal, local cash

https://imgur.com/a/YnxS4pk
Looking to sell locally if possible, if not willing to ship.For reference Local is NW side of Chicago/Near Burbs (Des Plaines, Mt. Prospect, Rosemont, etc.) $450 OBO
Long story short I upgraded over a year ago to a 2080ti (same day the Oculus S came out) and put this card back in its original packaging in my closet, was doing some cleaning and came across it because I completely forgot I still had it.
Only used card for about 2 years before upgrading (i have a problem, i have a 980ti before this, and am eagerly awaiting some sort of 3080ti)
Its back in original packing, including the cables in the box, and the rubber 'plugs' for the ports.
Never overclocked and I guess I should confirm was never used for crypto mining? (Ihonestly I still don't understand bitcoin...)
submitted by maniac86 to hardwareswap [link] [comments]

16 Apps That Will Earn You Passive Cash Back (Best Passive Saving Apps 2020)

This is the updated 2020 Q1/Q2 version of this post. If you remember reading the previous iteration of this post, there are several changes to the list this time around. Some new additions, and some removals.
Note: Most of these apps will be US only, with a minimum age requirement of 18.
Having said that, let's get right into it.

16 Passive Cash Back Apps 2020

Pei (Ref)

Pei is an automatic cash back app. When you sign up, you'll link a debit/credit card and you'll then automatically start earning cash back as you shop at certain Pei merchants (listed just below). There are so many merchants with Pei that you'll likely find yourself accidentally earning cash back on the app, without even knowing it. Pei is an app that you can really just link a card and then check back weeks later and surprise yourself with the money you've earned. Pei deserves the top spot in this post because of how consistent it is, and just how many places you can earn cash back with it. You can cash out instantly as soon as you reach $25 in your account. If you sign up with a referral code, you'll get a $2.50 bonus once you spend at a Pei merchant. You can use the referral code found on the most common Beermoney Sites thread here.

Pros of Pei:

So with all of that being said, let's talk about the stores you can find on Pei. Just note that these are only stores that are local to me, so if I don't have a certain store near me that Pei offers, I won't have it on this list. Additionally, Pei actually offers so many stores at this point that there's no way for me to actually keep this list up to date at all. There have been countless times where I've shopped somewhere that doesn't even come up as an option to earn with Pei but I'll see cash back listed on the app. It's really quite impressive.
In addition to receiving cash back at many locations, Pei also has a 'loyalty bonus' where if you shop at a certain store 5x you'll earn a bonus of up to $100 (but usually way less).
Pei Also just released a new feature called "Party Cash". Basically with Party Cash if you ever go shopping somewhere with your friends who also have Pei, you can start a party, and for each friend you shop with, each person will get a +1% bonus. For example, if I go shopping at Target with 2 other friends and we all start a Party Cash on Pei, we'll each get 1% (for usual cash back) plus 2% cash back from Party Cash, for a total of 3% cash back.
Most stores do have a $5 daily/weekly earning limit, so do be aware that if you spend more than ~$500, you'll likely reach an earning cap.

Dosh (Nonref)

Ref: KJK6

Dosh is one fastest growing cash back apps on this list. Similar to Pei, it's a card linked program where you'll automatically earn cash back when you shop at several local and national brands. On average you'll earn 3-5% cash back when you shop at the brands featured on Dosh. As soon as you hit $25 in your balance, you can cash out to PayPal.
The biggest downfall of Dosh is that the offers in the app change frequently, and the offers are targeted, meaning that not everyone will see the same offers.
Below are some of the current offers for instant cash back that you might find on Dosh. Note that only instant cash back offers found on the app will earn you cash back automatically when you spend with your card.
Dosh also does have a generous referral program where you'll get $5 when you sign up and link a card, and so will the referrer. If you'd like to, you can enter my code, KJK6 or use my referral link (nonref)
BTW, If you've heard of Dosh before, that might make sense. If you use Venmo and have the Venmo debit card, they recently introduced Venmo Rewards, which is powered by Dosh.

HOOCH Rewards (Ref Link)

HOOCH has earned the number 3 spot on this list this time around because of all the programs on this list, it has remained consistent. HOOCH will automatically earn you cash back when you link a credit/debit card whenever you shop at several national brands.
If you understand how Pei or Dosh above works, there's not really much more to say about HOOCH's cash back system.
You'll instantly earn 1% cash back at the following national brands:
  • Uber
  • iTunes
  • Starbucks
  • Domino's
  • Netflix
  • Shake Shack
  • Spotify
  • Audible
  • Redbox
  • Uber Eats
  • Hulu
  • In-N-Out
  • Chipotle
In addition to 1% cash back at the national brands, here are some other ways you'll earn with HOOCH:
  • Connecting your first card ($5 bonus)
  • Drink at a HOOCH Venue (5%)
  • Book a Hotel (5%)
  • Dine at a HOOCH Venue (5%)
  • Refer friends
HOOCH started a long while back as a subscription app where you'll buy a subscription and you'll get a free drink at a HOOCH venue every day. The venues are extremely limited, so a majority of the people reading this won't find any value in that plan. Dining is just as rare.
Their referral system appears to be pretty generous. They're currently offering a $5 bonus for signing up, as well as $1 for the referrer, as well as a 20% bonus on their earnings for life. Here's my referral link, and a nonref link :)
Here's the downfall of HOOCH:
You can only cash out for gift cards, and the minimum is $25.
For most people, this is a really big disadvantage of this app. Assuming that most people will only be earning through the 1% cash back brands, the minimum you'll need to spend in order to his the cash out minimum is $2500, which would likely take most people a really long time, since the brand options are not places where you're likely to spend a lot of money frequently...like, for example, a grocery store.
But still, you could probably earn yourself a few free gift cards every once in a while for a totally passive app.

Bumped (Sign up & join waitlist!)

Bumped is an investing app, when you really boil it down. When you sign up you'll select one brand in each category (there are a lot of categories, you'll see below), and each time you shop at the selected brand, you'll earn the certain specified purchase back in the form of company stock. This is unique to all of the other apps on this list, because you're actually receiving company stock. Also, because of this, I think it's very important to note that in order to sign up for Bumped you'll need to enter your SSN since you will be opening up a brokerage account.
As of posting, the following are the category options that you can choose from:
I've bolded the brands I selected. Obviously you should pick a brand that you can find yourself using the most. Do note that if you pick a brand that you might want to change later, you'll get the opportunity to change your brands 3 times a year, at least 30 days in between.
Category Options
Burgers 3% at Jack in the Box
3% at McDonald's
3% at Wendy's
Coffee 2% at Dunkin' Donuts
2% at Starbucks
Drug Stores 2% at CVS
1% at Walgreens
Family Dining 2% at Applebees
2% at Chili's
2% at Olive Garden
2% at Red Robin
Grocery 1% at Kroger Family of Stores
Home Improvement 0.5% at The Home Depot
Mexican Food 2% at Chipotle Mexican Grill
2% at Taco Bell
Music Subscriptions 1% at Pandora
5% at Spotify
Pizza 1% at Domino's
5% at Papa John's
2% at Pizza Hut
Ride Sharing 0.5% at Lyft
0.5% at Uber
Superstores 1% at Target
1% at Walmart
Telecommunications 0.5% at AT&T
0.5% at T-Mobile
0.5% at Verizon Wireless
Video Subscriptions 1% at Netflix
5% at Sling TV
Vineyards 1% at Willamette Valley Vineyards
One thing that is listed on the app is that if you want to move your way up on the waitlist you can refer your friends to join the waitlist as well.

Bits

Bits (of stock) is very similar to Bumped. It's better in some ways, but worse in most.
Similar to Bumped, there's a waitlist. Note that Bits is currently only available on iOS, but they have teased a version for Android will be coming.
So, here's the issue with Bits...
There's no brokerage accounts set up.
If you're not sure what that means, basically in order for you to actually own and trade stocks, you'll need to do it through a brokerage account. For example, if you use Robinhood, you own a brokerage account at Robinhood. If you use TD Ameritrade, you'll have a brokerage account at TD Ameritrade. So basically the app will say that you're getting stock back as you spend, but there's no way to actually sell your stock. Basically what I'm saying is that until the brokerage account is added, you're really just receiving play money. Bits has been extremely silent about the release of the brokerage accounts... I asked them back in December and they said they were aiming to release it "next month". Three months have passed since then, so I asked last week and they again said the same thing.. the goal is a release next month (April). We'll just have to wait and see. The point here is -- assume you're not earning anything with Bits until they add the brokerage accounts. This post will be updated once the accounts are added.
So, as for the actual cash back from Bits, you're able to choose 15 brands (that you can change at any time). I'll list the brands you can choose from below. What's interesting is that when the app first launched, all of the brands offered a 2% CB rate (which is unsustainably high). The rates have since come down to 0.5% for all brands.
To save characters, here's a recording of me scrolling through the brands offered. If you don't want to watch that video, just know that there are a lot of brands to choose from.

Ibotta (Ref Link)

Ibottais a cash back app that has been around for years, but this is its first time being added to this list. When the app originally launched, you would earn on the app by selecting cash back products that you could purchase and receive a rebate. Once you selected products you wanted to purchase, you would then scan the products after purchasing them to confirm your purchase, and then submit a photo of your receipt.
That doesn't sound too passive, now, does it?
Well, over the last little while, the app has come a very long way. In most cases you no longer need to select rebates you want to purchase, and in most cases you don't even need to scan a receipt, if you're shopping somewhere where you can link a rewards membership.
For example, I shop at Meijer and Target primarily for groceries. Both of these stores allow me to link my accounts with the stores, so for Target any time I shop and spend using a credit card that is linked to my Target account, I'll get cash back automatically. Same thin for Meijer. As soon as I enter my mPerks phone number, I'll get cash back.
What's great is that you don't even have to select offers anymore. So this is one of those cases where you might accidentally get cash back. Also, just to clarify, you're getting cash back for the products you purchase, not the place that you're shopping... which is different than most of the other apps featured on this list.
Even if you don't purchase a product that qualifies for a rebate, you'll probably find yourself earning cash back almost every time you shop because Ibotta has several "Any" offers, meaning any time you buy "any" kind of a product, say.. blinker fluid, for example, you'll earn cash back for your blinker fluid purchase regardless of the brand. These offers are optimal for cash back.
I personally went a whole couple months without opening Ibotta and I showed up to $50 in cash back from purchases I didn't even know I was getting cash back for.
Another newer feature of the app (which isn't passive) is Ibotta Pay. Ibotta Pay is basically just a glorified way of purchasing gift cards and receiving cash back for the gift card purchase.
In addition to this cash back, you'll also find several bonuses where if you redeem x offers, you'll get a certain $ boost. For example, I currently have an offer for a $10 bonus if I redeem 14 offers before the bonus expires in just a few days. I've redeemed 2 so far, so I'm not sure if I'll be getting there in time. (BTW, if you're ever cutting it close, just note that Ibotta Pay will work where each gift card purchase will qualify for a completed offer ;))
Ibotta also does have a generous referral program. They do referral offers very frequently where you can earn bonuses, but the current offer is $4 for each friend you invite. Please consider using the referral link found in the Most Common Beermoney Sites thread.

Uber Visa Local Offers

Shop or dine out, get Uber credits back.
Use your Visa card next time you dine out or go on a shopping spree at a featured store and earn Uber credits toward future rides. To join, go to settings in your Uber app and tap on Visa Local Offers.
Whenever you shop out at certain places you'll instantly receive uber credits to your account. It's really simple, and yes, this does stack with all of the other cash back apps you might be a part of.
The brands they offer do change semi-frequently, so you should check them from time to time.
In the past there have been 100% cash back offers for streaming services, and 10-20% cash back at Sam's Club. Considering that these offers do stack, there is some really great potential if you find any value in uber credit.
If you're interested in activating the Visa local offers, you'll need to make sure you have a visa card linked to your Uber account first, and then you should see "activate local offers" in the app settings or payment settings of Uber.
There's really not much to say about Visa Local Offers, but if you're looking for some FAQ/Terms, feel free to check them all out here.

Cash App "Boosts"

For those if you who don't know what Cash App is, Cash App is an app by Square that lets you send and receive payments. They've also expanded their app to support bitcoin purchases, and they'll also let you use the app as a checking account. With the cash app you can also sign up to receive the Cash Card, which is a debit card that is funded with your cash app balance.
If you have not used Cash App before, they do have a fancy referral program where when you sign up and send $50 you'll receive $5 and so will I. I do want to make this very clear: Cash App referrals can see the full name of the person who refers you, and the person who refers you will have your full name shown to them. If you're really private about personal information, be careful whose referral link you use. If you trust me, here's my referral link.
Please note that if you want to use the cash app boosts that I'm talking about, you'll need to be 18 years old and have the cash card (which is free, don't worry)!
Cash App announced that their cash card will be seeing 'boosts'. Boosts are their fancy way of saying that when you use our card at certain locations you'll receive a discount.
Once you have the cash card, you'll notice on the app below your card you'll be able to select your boost. The following are my personal boost options, as of posting. The boosts change frequently,
  • $5 Off One Order on DoorDash
  • 10% Off One Visit at Any Grocery Store
  • 10% Off One Visit at Dollar Tree
  • 10% Off One Visit at Walgreens
  • 10% Off One Visit at Nike
  • 10% Off One Visit at Walmart
  • $5 Off One Ride at Lyft
  • 10% Off Each Visit at Bath & Body Works
  • 10% Off Each Visit at Playstation Network
  • 10% Off Each Visit at Xbox
  • 10% off Each Visit at Chick-Fil-A
  • 10% Off Each Visit at Taco Bell
  • 10% Off Each Visit at Dominos
  • 10% Off Each Visit at Portillo's.
Boosts tend to change every Friday, but several boosts will remain for a long period of time. The longest lasting boost, which just went away in the last week is the $1 off Any Coffee Shop. It stuck around for almost 2 years, and anyone who had that boost applied would automatically save $1 every time they shop at any coffee shop, without any interaction.
So there are quite a few things I want to say & clear up.
  1. You can use a boost every 1 hour.
  2. You must select the boost that you'd like to use prior to the purchase. You're able to swap which boost you want to use as often as you'd like. So when you walk into Chick-Fil-A, just check and make sure your boost is set to CFA. If not, swap it.
  3. In order to apply the boost, you must pay with the Cash Card. It's automatic. If your total is $6 and you're saving 10%, you'll only need a Cash app balance of $5.4 for the transaction. Cash App will cover the other $0.60.
  4. If you link your Cash Card to Apple Pay, you can pay with it that way and the boosts will still be applied.
Do realize that just because you have the Cash Card on the app, you won't see the boosts. You need to have the physical Cash Card in your possession for the boosts to show up.
I've been really enjoying using the Cash Card for purchases. Especially at CFA & Chipotle. It's really not a hassle. When I'm standing in line at Chipotle I'll open the app and make sure my cash app balance is enough and if not I'll just add funds right away. The boost is applied immediately which makes you feel good. It's like the guac is free at Chipotle after you use the cash card. The only downside to using the Cash Card is that you won't be able to stack discounts with anything else on this list... Unless you find a way to link the Cash Card to any of the things on this list. Regardless, 10% off at Chipotle is the best I have found.

Venmo Rewards

Venmo recently announced Venmo Rewards.
Take what you know about Cash App's boosts and then apply something similar to Venmo's debit card. Venmo Rewards is actually a bit easier than Cash App's boosts because it truly requires no input from you whatsoever. The tradeoff is that the cash back rates are lower. If Cash App's average discount would get you 10% off, Venmo would be about 4%.
So here's how Venmo Rewards works:
Simply use your Venmo card at participating merchants—stores you know and love— to earn rewards. Zero setup required. See list of participating merchants in the app.
  1. Get a Venmo card Learn More
  2. Swipe your card at participating merchants
  3. Automatically earn cashback straight to your Venmo balance. (Seriously. That’s it.)
As mentioned above in the section about Dosh, Venmo Rewards is powered by Dosh, and similar to Dosh, the cash back options are targeted. I personally can't use Venmo so I don't have the current list that most people will be seeing as far as opportunities go, but Venmo Rewards originally launched (in November 2019) with the following CB opportunities:
  • 5% Target
  • 5% Sephora
  • 5% Wendy’s
  • 4% Dunkin’
  • 5% Chevron
  • 4% Sam’s Club
  • 5% Papa John’s
Evan on DoC commented earlier this month with their updated CB opportunities:
Dunkin Donuts 4%, Sephora 5%, Macy’s 4%, JCPenney 5%, Sam’s Club 4%, 1-800-flowers.com 15%, Papa Johns 5%, Forever 21 4%, Frank and Oak 5%)
  • 4% Walmart & Walmart Grocery
  • 4% Dunkin'
  • 5% Sephora
  • 4% Macy's
  • 5% JCPenney
  • 4% Sam's Club
  • 15% 1-800-Flowers.com
  • 5% Papa John's
  • 4% Forever 21
  • 5% Frank and Oak
What I can make from this is that the options have not changed much, and have actually expanded, with a couple exceptions. If you're a Venmo user, I think this is a pretty decent reason to get the debit card. The 4% at Sam's Club and Walmart is a pretty good deal for most people, especially if there are no limits to the cash back you can earn.

Empyr Apps

I've listed this as "Empyr Apps" because all of these apps are basically just the same thing. I'll take the example of Swagbucks Local since that's what most of you reading this will already be using.
If you paid attention in the Visa Local Offers section of this post, you'll find that the Empyr apps are actually very similar to those visa local offers.
When you shop at a certain store/restaurant, you'll earn with the empyr app you have linked. It's actually really not that special.
Here's a list of some/most of the current Empyr powered apps:
IMPORTANT NOTE: You're only allowed to use one Empyr app at a time! As soon as you link up with another Empyr app, you'll be disqualified from another until you link back up.
I do want to go into this list a bit this time around since there seem to be more and more Empyr apps popping up.
Swagbucks Local will always be popular among Swagbucks users. What's really nice about Swagbucks Local is that the payouts are always instantly converted to Swagbucks, which can help you cash out sooner. You'll also likely get a slot in the Swago board filled out, which might be beneficial to you.
RetailMeNot is a newer one on this list and it's the only one here that I feel like I recommend you go on/off with. RetailMeNot has recently been doing a lot of "Spend $X, get $Y" deals at a lot of the stores they offer. For example, they are currently offering $5 Cash back for in Store purchases of $30+ at Staples. This is a really good deal for an Empyr app, and would probably be my pick for that transaction, but not most of the time since they don't have very many stores as options.

Drop (iOS | Android)

Ref = fish

Alright, so Drop has gone through a lot of changes since the last time this post was updated. Drop used to be the best passive cash back app without any debate. It was also one of the first apps to offer a card link cash back program. Over the last several months (and years), their card link program has seen several devaluations. First they removed brands you could pick from to receive cash back (for example, when I first joined, you could choose to earn cash back each time you shopped at Amazon, but new users would later not see Amazon as an option). They later lowered the cash back rate. For example, Target went from 1%, to 0.2%. And finally they limited new users to pick from 5 brands to receive cash back at to just 3.
In February 2020 Drop announced a change to the way their card linked cash back would work..
They since have removed their 'power offers' (the offers where you automatically earn cash back at brands), and have replaced it with card link 'Challenges'. These challenges have just recently launched, so it's hard to tell whether or not these will be passive or worthwhile altogether. I currently have one ongoing challenge where if I spend $10+ at Target with a linked card, I'll get 250 points ($0.25), which is pretty insignificant.
As far as I can tell, they seem to have ditched all other forms of card linked cash back from their app. If the challenges turn out to have nothing passive about them, or have no proof of being worthwhile, Drop will likely not even be on this list the next time around.
So let's talk about some features of Drop since we're on the topic.
Drop has clearly moved away from passive cash back, and has focused more on becoming a cash back app in the form of portal earnings and specific offers. Several of these offers are unique to drop, which is good, but when it comes to portal cash back, the rates are often on par or slightly below the offerings you could find on Cashback Monitor.
Another thing about Drop that people are (rightfully) upset about is the change that now requires you to save up $25 worth of points (25,000) in order to cash out. The minimum previously was just $5.
The only feature about Drop that hasn't been nerfed to the ground is their referral program. When you refer your friends you'll earn $5 once they link a card, and they'll get $5 as well.
Overall I'm not too hopeful that Drop will remain passive at all, so this might be the app's last appearance on this list for the foreseeable future.

Credit Cards

I've refrained from listing credit cards on this post for a long time. Maybe because I thought it was too obvious, or maybe it was unnecessary, but since the number of younger people using this subreddit has been increasing I feel like I'd be doing a disservice to entirely disclude a blurb about credit cards.
If you have a credit card and you don't really care to learn more about credit cards, just skip this section. If you're reading this post and you're 18+ (or if you're about to turn 18) and you don't have a credit card or don't know much about credit cards, I think it's a good idea to look into them. I'm not going to tell you exactly what a credit card is since that's an easy google search, but I will tell you about some benefits, especially about those that pertain to the benefits of this post.
Credit cards are great because you can essentially spend money just like you normally would*, but you'll also earn cash back on all/almost all of the purchases you make with them. Additionally, especially if you're young, getting a credit card is a really great because it will start helping you build credit. I'm currently looking into renting a house next year with two housemates and I'm shocked to see that neither of them have any credit. They quite honestly couldn't possibly live in a house without me, since I'm the only one who has credit.
*Make sure you're paying off your credit card every month (or however often you need)... Don't let yourself get into debt. I'd argue if you think you're going to get into debt with a credit card, I'd personally suggest you don't get a credit card.
While you need to be 18 years old to get your own credit card, if you're under 18, you can still start gaining credit. Most major credit card companies will allow your parents to add you as an authorized signer on their credit card (which basically just means that you'll get permission to use their cards). An effect of this is that you'll start gaining credit. If you're looking to build up credit but you don't think you're ready for a credit card, I'd really recommend you ask your parents about becoming an authorized signer. It's a good conversation to have with your parents.
Anyways, let's talk about the cash back benefits, since that's what this post is about, after all.
There's a lot of credit cards. This post isn't going to list them all out. This isn't really even the right subreddit for credit card discussion.
Nerdwallet has a great list of credit cards, so you might want to check it out here, but I'm going to share my own personal situation and recommend that for anyone who might relate, since the average age on this subreddit is around the 18-25 range.
My first credit card was the Chase Freedom Unlimited card. I actually still use this credit card very frequently since it's a pretty balanced card. A couple years back on my 18th birthday I went into my local chase branch and physically had to beg for this card (it's a really beginner card, trust me). After getting denied both in bank and online, I finally found a rep who would give me a calm $500 credit limit for the card. Note: I had no credit before hand.
The Chase Freedom Unlimited card offers 1.5% cash back on all purchases with the card... so when you think about it, I'd previously been spending $100 at Chipotle every month with my debit card, but with the Freedom Unlimited card, I would now be getting 1.5% cash back ($1.50) back on those purchases. It's just an easy way to save money on everything.
If you use the other apps I suggest in this post, you'll likely earn cash back passively from them on certain brands that are featured, but stacking a credit card cash back on top of all the other bonuses is the absolute best way to earn passive cash back since it's usually 1-5% cash back on your purchases.

ReceiptPal

ReceiptPal is an app that allows you to upload your receipts from almost anywhere that you go shopping. It's actually a really simple process.
When you sign up you'll be presented with almost little scratch cards which contains 4 spaces. Each space is filled with a receipt that you upload. Once you reach 4 receipts, you'll earn 100 points. 300/400 points = $1, so basically every 16 receipts you upload you'll receive ~$1.
"So, mr Fishering, how is this passive!?"
Unlike most receipt apps, ReceiptPal allows you to link your emails and amazon account and they'll automatically upload receipts for you. I actually let this app alone for several months and came back to thousands of points and cashed out instantly.
If you make purchases online, you'll essentially be earning ~$0.07 for every purchase you make if you have your email linked. They'll automatically find receipts and submit them, so it's 100% passive earnings.
If you also shop IRL you can submit physical receipts as well.
You can cash out instantly for $5 minimum in the form of a gift card. I'd recommend saving up at least 7,500 points for a $25 gift card, since it'll value points at 300/$1.

Paribus

Paribus is not your typical cash back site. Once you sign up you can link your different accounts (such as your amazon account) and it will automatically track your shopping. Paribus doesn't directly earn you cash back... it acts more like Walmart's saving catcher if you've ever heard of that. If an item you buy somewhere goes on sale shortly after or if there's any other discounts/promotions you may have missed when you originally bought something, they'll quietly get you a rebate on whatever you purchased. It can be very hit or miss. The catch is that they do take a cut of your savings. I believe it is 30% for all new users, but for each member you refer you can cut the cut by 5%. If you save $10, they'll charge you $3 to whatever card you have linked.
Personally I've found it to be really hit or miss, but I've found some incredible savings. I bought a gopro and I got $15 saved with Paribus, and I also got $50 back from some really nice headphones I picked up on amazon from Amazon. What's weird is I bought the headphones like 6 months prior to the rebate. Was shocking to see it, but I've really had some good luck with Paribus.

Sift (iOS | Android)

After the last post, I noticed a lot of people enjoyed Paribus, so I figured it'd be good to add some alternatives in this post.
So, here's Sift. Sift is a similar site to Paribus, and its key focus is on enforcing credit card benefits that many people don't know about. It's actually pretty nice. It'll let you pick your credit card and it'll tell you pretty much everything about your card. I have the Chase Freedom Unlimited card, and I was actually shocked to hear some of the benefits my card has that I have never been taking advantage of.
From Sift's site:
We automatically comb through your credit card policies to show you all your benefits in one place. For every purchase we let you know what benefits you are eligible for. We streamline the claim process to make it as simple as possible to get your money back.
You can link your emails as well as your amazon account as well and they'll make it really easy for you.
I have not actually used Sift much myself, so I cannot attest to how well it works, but the app store reviews are generally positive for Sift.

Trim Savings

Trim is similar to Paribus and Sift, but there's a certain void that it's trying to fill that the other two don't really seem to be filling.
Trim's main selling point is its bill negotiations. Instead of trying to save you money when a price drops, they're going to try and just nip it right in the bud and try to get your bills lower.
Right now they're mainly trying to negotiate with cell providers, internet providers, and cable providers.
Here's how the process goes:
  • Submit Your Bill: Submit your most recent cell phone, cable or internet bill to get started.
  • Trim Negotiates: Trim negotiates with your provider to get you discounts on your bill.
  • You Save Money: Trim takes 25% of annualized savings, but only on success—otherwise, it's free!
So, similar to Paribus, Trim does charge a fee. In a sense, I guess that's a good thing because it gives them an incentive to make sure to get some sort of bill decrease for you so they'll make some money too. Their rate is currently 25% of your bill negotiation. Of course, if they're not able to negotiate your bill for you, you won't pay them anything.
Trim does also monitor your bank account for you and they'll notify you of account changes (that you can set). For example, if they see a transaction worth $xxx, they'll notify me that I've made a large transaction. If there weren't already so many other sites/apps that could do that, I'd say that's a great feature that Trim offers.

Conclusion

Hopefully there's some new apps/sites you found out about in this post. If you sign up for some/all of these programs listed, you should probably find yourself earning some pretty decent cash back, depending on where/how much you spend. These apps are very satisfying to watch your balances build up on, and after a while it's very rewarding to cash out and treat yourself.
In this update I added some really great additions like Ibotta, Venmo Rewards, and Bits, but I am very sad to see the turn that Drop has taken. I have been tipped off to some upcoming passive cash back opportunities that will be coming very soon, and I can't wait to share those and hopefully add them to this list in the near future.
As always if you have any questions please do leave a comment or send me a PM!
Thanks for reading!
  • Follow me on reddit: Fishering
  • Read my other posts!
  • Please send me PMs with any questions you have about anything, or even just PM me if you want someone to talk to.
submitted by Fishering to beermoney [link] [comments]

New-ish Player's Guide++

I did a guide a month ago for new players here, this guide is a continuation on that: https://www.reddit.com/EscapefromTarkov/comments/e9smrv/new_players_guide_extended/
If this is your first week, this games amazing and worth it. In the meantime read this guide to start:
https://www.reddit.com/EscapefromTarkov/comments/e515ub/influx_of_new_players_means_its_time_for_a_guide/
I wanted to do a follow up guide after doing ~30ish runs on each map this month to get the current meta of each and review various armors because I'm slightly bored after all the quests and max hideout is done but this game is just too addicting to stop playing. It also helps that I've had 8 friends buy the game in the last few weeks so this is easier than explaining to them one at a time. If anyone sees anything incorrect please feel free to correct me and if there's any other questions post in comments/pm me.

General Tips Continued:

Maps

TLDR: Shoreline for money, Interchange for consistency, Customs for quests, Factory/Labs for fights.I did a brief overview on money runs on various maps in my previous guide, but wanted to update those maps in light of recent changes to spawns and my experiences over the past month or so testing all the maps out. In profitability order:
Shoreline - With the new addition of 6-8 LedX spawns, shoreline has become king for money. It takes the high reward possibility of Labs and mixes it with the consistent loot value of Interchange with the only draw back being the need for keys, which I purchased for around 3-4 mil for all good loot rooms ( 15 keys in total). This is a steep investment, but it is a one time cost, and completely worth it. You can expect an LedX about 1/7 raids clearing most LedX rooms. I got 5/36 shoreline runs, clearing most rooms about 2/3rds of the time, dying or being beaten to the rooms in the other 1/3. Unlike labs, however, these are just the cherry on top of consistently amazing loot in the rooms with easy extracts to boot. The big draw back is popularity, I run into at least 2-3 PMCs at the resort, usually 4-5 with a duo or squad tossed in the mix. They're usually tier 3-4 geared (I go tier 5 but don't recommend that unless you're good with losing a mil to a lucky mosin shot) and have a bad habit of hiding in rooms and ambushing.
Interchange - For consistent mid value barter items, Interchange is your map. Nothing has changed from my original assessment, tldr version being run Oli shelves and the 3 tech stores next to it for about 500k-1 mil per extract, assuming you bring a decent bag and rig. This map has dropped in popularity with the Shoreline buff, but be on the look out for tier 5 geared PMCs doing their 100 Killa kills grind and the ever present extract campers.
Reserve - This map still has great high value drops, less frequent than Interchange but with higher average value and requiring less keys than Shoreline. The massive drawback here is extract difficulty. If you can afford it, para-cord with the ice-pick for the repel extract is recommended as you just have to ditch/bag chest armor and you're out. Losing a bag for the manhole has required many a painful pick and chose for me recently and the door just isn't consistent, sometimes the button will be pressed but its still locked, other times its just open. Its a fun PvP map, but for money its just not beating the two above.
Customs - This map just really isn't for money, its for quests. But with the addition of the new stashes spread throughout the map you can make decent money whilst running the quests. See my past guide/the link below for stash runs.
Factory - Wait, Factory over Labs? Customs over Labs? Yes, I'm getting to that. So why Factory? Because quick, hit and run style or longer scav pileup at a choke-point style runs can net you tons of experience along with a big stack of weapons and decent loot from scav pockets. Solos try the upper hallway office/breakable door, the bottom pipeline hallway curve, or extract choke-point. Duos and squads can hold down the shower doors with ease.
Labs - People who have read my previous guide might be surprise this is last. The issue with labs is its completely dependent on high level item spawn rates. Labs is my favorite map, I could write a lengthy separate post about everything labs. At the beginning of the wipe, labs was ludicrously OP. You could spawn in and expect a 1/3 chance of an LedX (2.5 mil at the time) along with 2-3 other 400k+ items spawning in each raid. This resulted in 10's of millions in profit. Then they released Shoreline LedX spawns and turned off labs LedX. The barrel spawn was completely dead (50+ runs and nothing) and the two other (at the time) known locations had maybe a 1/25 rate. You could expect maybe 1-2 other drops per raid and it was now crowded with PMCs. It was difficult to turn a profit doing geared runs, and I lost millions. Today its slightly better, there are 3 new LedX spawns and the barrel spawn has a 1/7-10 (still testing) rate but everything has plummeted in price (VPX is less than 200k now) and you can expect 3-6 tier 5 geared PMCs plus raiders to be skulking around. Great for fights, terrible for money. Though extracting will often bring huge rewards in gear alone in current state.
... - Feel like I'm forgetting one... Hmm... Nah they wouldn't put a thermal ridden snipe happy map in the game with no loot spawns and lots of annoying quests. (Don't @ me Woods fans)

Armor

TLDR: Highest level armor not worth, high level ammo makes everything vulnerable. Not doing the same tiers (see previous guide) but the actual armor level itself. For actual setups with armoweapons see my previous guide.

Does this mean you should never run good armor? No. What it means is you should be aware you are likely losing value/money by doing so at higher tiers. Better armor will help you survive more raids, help with quests, and is a sign of being a more established player. But you are trading a LOT more money for smaller advantages in return, making it hard to recommend the more expensive armors in the game to anyone who can't handle multiple instant deaths in a row losing 500k-1mil.

Links to helpful stuff and vids

Ammo Spreadsheet (focus on armor pen power above all): https://docs.google.com/spreadsheets/d/1_l-gYeSt2MqIw62EdMZt_wefG0yO9L7dTaRM74c2J1w/htmlview?sle=true
Best in Slot guide to weapon modding (Shout out to Virion this guide is amazing work) : https://docs.google.com/spreadsheets/d/1yHyVEVB5oN0qL_pR1qTNP1_ICmzJ3SCFJQNb6XDM_DQ/htmlview?usp=sharing&sle=true
Every map key guide (I used as a guide for Shoreline keys mostly): https://www.youtube.com/watch?v=yzGsoK-dkkY&t=931s&ab_channel=Pestily
Shoreline LedX spawns (Note: he and Pestily have some different spawns, I check both): https://www.youtube.com/watch?v=ndVWwscyJW4&t=112s&ab_channel=Piranha
Interchange Loot guide (I only focus on the 3 tech stores near Oli and Oli itself): https://www.youtube.com/watch?v=E7GJnZLfczY&ab_channel=VoX_E
Customs Stash Run: https://www.youtube.com/watch?v=H7b7zVwN6wA&ab_channel=Pestily
How I learned Labs this patch:
See key guide lab section above.
The main spawns in the first part of this video: https://www.youtube.com/watch?v=UxUWWOj9R0U&t=758s
I used to combine a bunch of different videos but this guy does a solid job of getting all of them: https://www.youtube.com/watch?v=FTMKJvdDbxI&t=319s&ab_channel=AlekkerTv
Learn all the extracts before running the labs: https://www.youtube.com/watch?v=OyWCznHKugM

This guide was brought to you by: Tarkov 2020 Wait Times! Averaging 20 minutes or more per raid giving me plenty of down time to type it up! I joke but I really do hope they fix this soon, and to new players this is a very uncommon issue. BSG has never let us down before.
submitted by Boredmatt14 to EscapefromTarkov [link] [comments]

16 Apps That Will Earn You Passive Cash Back (Best Passive Saving Apps 2020)

This is the updated 2020 Q1/Q2 version of this post. If you remember reading the previous iteration of this post, there are several changes to the list this time around. Some new additions, and some removals.
Note: Most of these apps will be US only, with a minimum age requirement of 18.
Having said that, let's get right into it.

16 Passive Cash Back Apps 2020

Pei

Ref = fish

Pei is an automatic cash back app. When you sign up, you'll link a debit/credit card and you'll then automatically start earning cash back as you shop at certain Pei merchants (listed just below). There are so many merchants with Pei that you'll likely find yourself accidentally earning cash back on the app, without even knowing it. Pei is an app that you can really just link a card and then check back weeks later and surprise yourself with the money you've earned. Pei deserves the top spot in this post because of how consistent it is, and just how many places you can earn cash back with it. You can cash out instantly as soon as you reach $25 in your account. If you sign up with a referral code, you'll get a $2.50 bonus once you spend at a Pei merchant. You can use the referral code found on the most common Beermoney Sites thread here.

Pros of Pei:

So with all of that being said, let's talk about the stores you can find on Pei. Just note that these are only stores that are local to me, so if I don't have a certain store near me that Pei offers, I won't have it on this list. Additionally, Pei actually offers so many stores at this point that there's no way for me to actually keep this list up to date at all. There have been countless times where I've shopped somewhere that doesn't even come up as an option to earn with Pei but I'll see cash back listed on the app. It's really quite impressive.
In addition to receiving cash back at many locations, Pei also has a 'loyalty bonus' where if you shop at a certain store 5x you'll earn a bonus of up to $100 (but usually way less).
Pei Also just released a new feature called "Party Cash". Basically with Party Cash if you ever go shopping somewhere with your friends who also have Pei, you can start a party, and for each friend you shop with, each person will get a +1% bonus. For example, if I go shopping at Target with 2 other friends and we all start a Party Cash on Pei, we'll each get 1% (for usual cash back) plus 2% cash back from Party Cash, for a total of 3% cash back.
Most stores do have a $5 daily/weekly earning limit, so do be aware that if you spend more than ~$500, you'll likely reach an earning cap.

Dosh (Nonref)

Ref: KJK6

Dosh is one fastest growing cash back apps on this list. Similar to Pei, it's a card linked program where you'll automatically earn cash back when you shop at several local and national brands. On average you'll earn 3-5% cash back when you shop at the brands featured on Dosh. As soon as you hit $25 in your balance, you can cash out to PayPal.
The biggest downfall of Dosh is that the offers in the app change frequently, and the offers are targeted, meaning that not everyone will see the same offers.
Below are some of the current offers for instant cash back that you might find on Dosh. Note that only instant cash back offers found on the app will earn you cash back automatically when you spend with your card.
Dosh also does have a generous referral program where you'll get $5 when you sign up and link a card, and so will the referrer. If you'd like to, you can enter my code, KJK6 or use my referral link (nonref)
BTW, If you've heard of Dosh before, that might make sense. If you use Venmo and have the Venmo debit card, they recently introduced Venmo Rewards, which is powered by Dosh.

HOOCH Rewards (Ref Link)

HOOCH has earned the number 3 spot on this list this time around because of all the programs on this list, it has remained consistent. HOOCH will automatically earn you cash back when you link a credit/debit card whenever you shop at several national brands.
If you understand how Pei or Dosh above works, there's not really much more to say about HOOCH's cash back system.
You'll instantly earn 1% cash back at the following national brands:
  • Uber
  • iTunes
  • Starbucks
  • Domino's
  • Netflix
  • Shake Shack
  • Spotify
  • Audible
  • Redbox
  • Uber Eats
  • Hulu
  • In-N-Out
  • Chipotle
In addition to 1% cash back at the national brands, here are some other ways you'll earn with HOOCH:
  • Connecting your first card ($5 bonus)
  • Drink at a HOOCH Venue (5%)
  • Book a Hotel (5%)
  • Dine at a HOOCH Venue (5%)
  • Refer friends
HOOCH started a long while back as a subscription app where you'll buy a subscription and you'll get a free drink at a HOOCH venue every day. The venues are extremely limited, so a majority of the people reading this won't find any value in that plan. Dining is just as rare.
Their referral system appears to be pretty generous. They're currently offering a $5 bonus for signing up, as well as $1 for the referrer, as well as a 20% bonus on their earnings for life. Here's my referral link, and a nonref link :)
Here's the downfall of HOOCH:
You can only cash out for gift cards, and the minimum is $25.
For most people, this is a really big disadvantage of this app. Assuming that most people will only be earning through the 1% cash back brands, the minimum you'll need to spend in order to his the cash out minimum is $2500, which would likely take most people a really long time, since the brand options are not places where you're likely to spend a lot of money frequently...like, for example, a grocery store.
But still, you could probably earn yourself a few free gift cards every once in a while for a totally passive app.

Bumped (Sign up & join waitlist!)

Bumped is an investing app, when you really boil it down. When you sign up you'll select one brand in each category (there are a lot of categories, you'll see below), and each time you shop at the selected brand, you'll earn the certain specified purchase back in the form of company stock. This is unique to all of the other apps on this list, because you're actually receiving company stock. Also, because of this, I think it's very important to note that in order to sign up for Bumped you'll need to enter your SSN since you will be opening up a brokerage account.
As of posting, the following are the category options that you can choose from:
I've bolded the brands I selected. Obviously you should pick a brand that you can find yourself using the most. Do note that if you pick a brand that you might want to change later, you'll get the opportunity to change your brands 3 times a year, at least 30 days in between.
Category Options
Burgers 3% at Jack in the Box
3% at McDonald's
3% at Wendy's
Coffee 2% at Dunkin' Donuts
2% at Starbucks
Drug Stores 2% at CVS
1% at Walgreens
Family Dining 2% at Applebees
2% at Chili's
2% at Olive Garden
2% at Red Robin
Grocery 1% at Kroger Family of Stores
Home Improvement 1% at The Home Depot
Mexican Food 2% at Chipotle Mexican Grill
2% at Taco Bell
Music Subscriptions 1% at Pandora
5% at Spotify
Pizza 1% at Domino's
5% at Papa John's
2% at Pizza Hut
Ride Sharing 0.5% at Lyft
0.5% at Uber
Superstores 1% at Target
1% at Walmart
Telecommunications 0.5% at AT&T
0.5% at T-Mobile
0.5% at Verizon Wireless
Video Subscriptions 1% at Netflix
5% at Sling TV
Vineyards 1% at Willamette Valley Vineyards
One thing that is listed on the app is that if you want to move your way up on the waitlist you can refer your friends to join the waitlist as well.

Bits

Bits (of stock) is very similar to Bumped. It's better in some ways, but worse in most.
Similar to Bumped, there's a waitlist. Note that Bits is currently only available on iOS, but they have teased a version for Android will be coming.
So, here's the issue with Bits...
There's no brokerage accounts set up.
If you're not sure what that means, basically in order for you to actually own and trade stocks, you'll need to do it through a brokerage account. For example, if you use Robinhood, you own a brokerage account at Robinhood. If you use TD Ameritrade, you'll have a brokerage account at TD Ameritrade. So basically the app will say that you're getting stock back as you spend, but there's no way to actually sell your stock. Basically what I'm saying is that until the brokerage account is added, you're really just receiving play money. Bits has been extremely silent about the release of the brokerage accounts... I asked them back in December and they said they were aiming to release it "next month". Three months have passed since then, so I asked last week and they again said the same thing.. the goal is a release next month (April). We'll just have to wait and see. The point here is -- assume you're not earning anything with Bits until they add the brokerage accounts. This post will be updated once the accounts are added.
So, as for the actual cash back from Bits, you're able to choose 15 brands (that you can change at any time). I'll list the brands you can choose from below. What's interesting is that when the app first launched, all of the brands offered a 2% CB rate (which is unsustainably high). The rates have since come down to 0.5% for all brands.
To save characters, here's a recording of me scrolling through the brands offered. If you don't want to watch that video, just know that there are a lot of brands to choose from.

iBotta

Ref = xfspqg

iBotta is a cash back app that has been around for years, but this is its first time being added to this list. When the app originally launched, you would earn on the app by selecting cash back products that you could purchase and receive a rebate. Once you selected products you wanted to purchase, you would then scan the products after purchasing them to confirm your purchase, and then submit a photo of your receipt.
That doesn't sound too passive, now, does it?
Well, over the last little while, the app has come a very long way. In most cases you no longer need to select rebates you want to purchase, and in most cases you don't even need to scan a receipt, if you're shopping somewhere where you can link a rewards membership.
For example, I shop at Meijer and Target primarily for groceries. Both of these stores allow me to link my accounts with the stores, so for Target any time I shop and spend using a credit card that is linked to my Target account, I'll get cash back automatically. Same thin for Meijer. As soon as I enter my mPerks phone number, I'll get cash back.
What's great is that you don't even have to select offers anymore. So this is one of those cases where you might accidentally get cash back. Also, just to clarify, you're getting cash back for the products you purchase, not the place that you're shopping... which is different than most of the other apps featured on this list.
Even if you don't purchase a product that qualifies for a rebate, you'll probably find yourself earning cash back almost every time you shop because iBotta has several "Any" offers, meaning any time you buy "any" kind of a product, say.. blinker fluid, for example, you'll earn cash back for your blinker fluid purchase regardless of the brand. These offers are optimal for cash back.
I personally went a whole couple months without opening iBotta and I showed up to $50 in cash back from purchases I didn't even know I was getting cash back for.
Another newer feature of the app (which isn't passive) is iBotta Pay. iBotta Pay is basically just a glorified way of purchasing gift cards and receiving cash back for the gift card purchase.
In addition to this cash back, you'll also find several bonuses where if you redeem x offers, you'll get a certain $ boost. For example, I currently have an offer for a $10 bonus if I redeem 14 offers before the bonus expires in just a few days. I've redeemed 2 so far, so I'm not sure if I'll be getting there in time. (BTW, if you're ever cutting it close, just note that iBotta Pay will work where each gift card purchase will qualify for a completed offer ;))
iBotta also does have a generous referral program. They do referral offers very frequently where you can earn bonuses, but the current offer is $4 for each friend you invite. Please consider using the referral link found in the Most Common Beermoney Sites thread.

Uber Visa Local Offers

Shop or dine out, get Uber credits back.
Use your Visa card next time you dine out or go on a shopping spree at a featured store and earn Uber credits toward future rides. To join, go to settings in your Uber app and tap on Visa Local Offers.
Whenever you shop out at certain places you'll instantly receive uber credits to your account. It's really simple, and yes, this does stack with all of the other cash back apps you might be a part of.
The brands they offer do change semi-frequently, so you should check them from time to time.
In the past there have been 100% cash back offers for streaming services, and 10-20% cash back at Sam's Club. Considering that these offers do stack, there is some really great potential if you find any value in uber credit.
If you're interested in activating the Visa local offers, you'll need to make sure you have a visa card linked to your Uber account first, and then you should see "activate local offers" in the app settings or payment settings of Uber.
There's really not much to say about Visa Local Offers, but if you're looking for some FAQ/Terms, feel free to check them all out here.

Cash App "Boosts"

For those if you who don't know what Cash App is, Cash App is an app by Square that lets you send and receive payments. They've also expanded their app to support bitcoin purchases, and they'll also let you use the app as a checking account. With the cash app you can also sign up to receive the Cash Card, which is a debit card that is funded with your cash app balance.
If you have not used Cash App before, they do have a fancy referral program where when you sign up and send $50 you'll receive $5 and so will I. I do want to make this very clear: Cash App referrals can see the full name of the person who refers you, and the person who refers you will have your full name shown to them. If you're really private about personal information, be careful whose referral link you use. If you trust me, here's my referral link.
Please note that if you want to use the cash app boosts that I'm talking about, you'll need to be 18 years old and have the cash card (which is free, don't worry)!
Cash App announced that their cash card will be seeing 'boosts'. Boosts are their fancy way of saying that when you use our card at certain locations you'll receive a discount.
Once you have the cash card, you'll notice on the app below your card you'll be able to select your boost. The following are my personal boost options, as of posting. The boosts change frequently,
  • $5 Off One Order on DoorDash
  • 10% Off One Visit at Any Grocery Store
  • 10% Off One Visit at Dollar Tree
  • 10% Off One Visit at Walgreens
  • 10% Off One Visit at Nike
  • 10% Off One Visit at Walmart
  • $5 Off One Ride at Lyft
  • 10% Off Each Visit at Bath & Body Works
  • 10% Off Each Visit at Playstation Network
  • 10% Off Each Visit at Xbox
  • 10% off Each Visit at Chick-Fil-A
  • 10% Off Each Visit at Taco Bell
  • 10% Off Each Visit at Dominos
  • 10% Off Each Visit at Portillo's.
Boosts tend to change every Friday, but several boosts will remain for a long period of time. The longest lasting boost, which just went away in the last week is the $1 off Any Coffee Shop. It stuck around for almost 2 years, and anyone who had that boost applied would automatically save $1 every time they shop at any coffee shop, without any interaction.
So there are quite a few things I want to say & clear up.
  1. You can use a boost every 1 hour.
  2. You must select the boost that you'd like to use prior to the purchase. You're able to swap which boost you want to use as often as you'd like. So when you walk into Chick-Fil-A, just check and make sure your boost is set to CFA. If not, swap it.
  3. In order to apply the boost, you must pay with the Cash Card. It's automatic. If your total is $6 and you're saving 10%, you'll only need a Cash app balance of $5.4 for the transaction. Cash App will cover the other $0.60.
  4. If you link your Cash Card to Apple Pay, you can pay with it that way and the boosts will still be applied.
Do realize that just because you have the Cash Card on the app, you won't see the boosts. You need to have the physical Cash Card in your possession for the boosts to show up.
I've been really enjoying using the Cash Card for purchases. Especially at CFA & Chipotle. It's really not a hassle. When I'm standing in line at Chipotle I'll open the app and make sure my cash app balance is enough and if not I'll just add funds right away. The boost is applied immediately which makes you feel good. It's like the guac is free at Chipotle after you use the cash card. The only downside to using the Cash Card is that you won't be able to stack discounts with anything else on this list... Unless you find a way to link the Cash Card to any of the things on this list. Regardless, 10% off at Chipotle is the best I have found.

Venmo Rewards

Venmo recently announced Venmo Rewards.
Take what you know about Cash App's boosts and then apply something similar to Venmo's debit card. Venmo Rewards is actually a bit easier than Cash App's boosts because it truly requires no input from you whatsoever. The tradeoff is that the cash back rates are lower. If Cash App's average discount would get you 10% off, Venmo would be about 4%.
So here's how Venmo Rewards works:
Simply use your Venmo card at participating merchants—stores you know and love— to earn rewards. Zero setup required. See list of participating merchants in the app.
  1. Get a Venmo card Learn More
  2. Swipe your card at participating merchants
  3. Automatically earn cashback straight to your Venmo balance. (Seriously. That’s it.)
As mentioned above in the section about Dosh, Venmo Rewards is powered by Dosh, and similar to Dosh, the cash back options are targeted. I personally can't use Venmo so I don't have the current list that most people will be seeing as far as opportunities go, but Venmo Rewards originally launched (in November 2019) with the following CB opportunities:
  • 5% Target
  • 5% Sephora
  • 5% Wendy’s
  • 4% Dunkin’
  • 5% Chevron
  • 4% Sam’s Club
  • 5% Papa John’s
Evan on DoC commented earlier this month with their updated CB opportunities:
Dunkin Donuts 4%, Sephora 5%, Macy’s 4%, JCPenney 5%, Sam’s Club 4%, 1-800-flowers.com 15%, Papa Johns 5%, Forever 21 4%, Frank and Oak 5%)
  • 4% Walmart & Walmart Grocery
  • 4% Dunkin'
  • 5% Sephora
  • 4% Macy's
  • 5% JCPenney
  • 4% Sam's Club
  • 15% 1-800-Flowers.com
  • 5% Papa John's
  • 4% Forever 21
  • 5% Frank and Oak
What I can make from this is that the options have not changed much, and have actually expanded, with a couple exceptions. If you're a Venmo user, I think this is a pretty decent reason to get the debit card. The 4% at Sam's Club and Walmart is a pretty good deal for most people, especially if there are no limits to the cash back you can earn.

Empyr Apps

I've listed this as "Empyr Apps" because all of these apps are basically just the same thing. I'll take the example of Swagbucks Local since that's what most of you reading this will already be using.
If you paid attention in the Visa Local Offers section of this post, you'll find that the Empyr apps are actually very similar to those visa local offers.
When you shop at a certain store/restaurant, you'll earn with the empyr app you have linked. It's actually really not that special.
Here's a list of some/most of the current Empyr powered apps:
IMPORTANT NOTE: You're only allowed to use one Empyr app at a time! As soon as you link up with another Empyr app, you'll be disqualified from another until you link back up.
I do want to go into this list a bit this time around since there seem to be more and more Empyr apps popping up.
Swagbucks Local will always be popular among Swagbucks users. What's really nice about Swagbucks Local is that the payouts are always instantly converted to Swagbucks, which can help you cash out sooner. You'll also likely get a slot in the Swago board filled out, which might be beneficial to you.
RetailMeNot is a newer one on this list and it's the only one here that I feel like I recommend you go on/off with. RetailMeNot has recently been doing a lot of "Spend $X, get $Y" deals at a lot of the stores they offer. For example, they are currently offering $5 Cash back for in Store purchases of $30+ at Staples. This is a really good deal for an Empyr app, and would probably be my pick for that transaction, but not most of the time since they don't have very many stores as options.

Drop (iOS | Android)

Ref = fish

Alright, so Drop has gone through a lot of changes since the last time this post was updated. Drop used to be the best passive cash back app without any debate. It was also one of the first apps to offer a card link cash back program. Over the last several months (and years), their card link program has seen several devaluations. First they removed brands you could pick from to receive cash back (for example, when I first joined, you could choose to earn cash back each time you shopped at Amazon, but new users would later not see Amazon as an option). They later lowered the cash back rate. For example, Target went from 1%, to 0.2%. And finally they limited new users to pick from 5 brands to receive cash back at to just 3.
In February 2020 Drop announced a change to the way their card linked cash back would work..
They since have removed their 'power offers' (the offers where you automatically earn cash back at brands), and have replaced it with card link 'Challenges'. These challenges have just recently launched, so it's hard to tell whether or not these will be passive or worthwhile altogether. I currently have one ongoing challenge where if I spend $10+ at Target with a linked card, I'll get 250 points ($0.25), which is pretty insignificant.
As far as I can tell, they seem to have ditched all other forms of card linked cash back from their app. If the challenges turn out to have nothing passive about them, or have no proof of being worthwhile, Drop will likely not even be on this list the next time around.
So let's talk about some features of Drop since we're on the topic.
Drop has clearly moved away from passive cash back, and has focused more on becoming a cash back app in the form of portal earnings and specific offers. Several of these offers are unique to drop, which is good, but when it comes to portal cash back, the rates are often on par or slightly below the offerings you could find on Cashback Monitor.
Another thing about Drop that people are (rightfully) upset about is the change that now requires you to save up $25 worth of points (25,000) in order to cash out. The minimum previously was just $5.
The only feature about Drop that hasn't been nerfed to the ground is their referral program. When you refer your friends you'll earn $5 once they link a card, and they'll get $5 as well.
Overall I'm not too hopeful that Drop will remain passive at all, so this might be the app's last appearance on this list for the foreseeable future.

Credit Cards

I've refrained from listing credit cards on this post for a long time. Maybe because I thought it was too obvious, or maybe it was unnecessary, but since the number of younger people using this subreddit has been increasing I feel like I'd be doing a disservice to entirely disclude a blurb about credit cards.
If you have a credit card and you don't really care to learn more about credit cards, just skip this section. If you're reading this post and you're 18+ (or if you're about to turn 18) and you don't have a credit card or don't know much about credit cards, I think it's a good idea to look into them. I'm not going to tell you exactly what a credit card is since that's an easy google search, but I will tell you about some benefits, especially about those that pertain to the benefits of this post.
Credit cards are great because you can essentially spend money just like you normally would*, but you'll also earn cash back on all/almost all of the purchases you make with them. Additionally, especially if you're young, getting a credit card is a really great because it will start helping you build credit. I'm currently looking into renting a house next year with two housemates and I'm shocked to see that neither of them have any credit. They quite honestly couldn't possibly live in a house without me, since I'm the only one who has credit.
*Make sure you're paying off your credit card every month (or however often you need)... Don't let yourself get into debt. I'd argue if you think you're going to get into debt with a credit card, I'd personally suggest you don't get a credit card.
While you need to be 18 years old to get your own credit card, if you're under 18, you can still start gaining credit. Most major credit card companies will allow your parents to add you as an authorized signer on their credit card (which basically just means that you'll get permission to use their cards). An effect of this is that you'll start gaining credit. If you're looking to build up credit but you don't think you're ready for a credit card, I'd really recommend you ask your parents about becoming an authorized signer. It's a good conversation to have with your parents.
Anyways, let's talk about the cash back benefits, since that's what this post is about, after all.
There's a lot of credit cards. This post isn't going to list them all out. This isn't really even the right subreddit for credit card discussion.
Nerdwallet has a great list of credit cards, so you might want to check it out here, but I'm going to share my own personal situation and recommend that for anyone who might relate, since the average age on this subreddit is around the 18-25 range.
My first credit card was the Chase Freedom Unlimited card. I actually still use this credit card very frequently since it's a pretty balanced card. A couple years back on my 18th birthday I went into my local chase branch and physically had to beg for this card (it's a really beginner card, trust me). After getting denied both in bank and online, I finally found a rep who would give me a calm $500 credit limit for the card. Note: I had no credit before hand.
The Chase Freedom Unlimited card offers 1.5% cash back on all purchases with the card... so when you think about it, I'd previously been spending $100 at Chipotle every month with my debit card, but with the Freedom Unlimited card, I would now be getting 1.5% cash back ($1.50) back on those purchases. It's just an easy way to save money on everything.
If you use the other apps I suggest in this post, you'll likely earn cash back passively from them on certain brands that are featured, but stacking a credit card cash back on top of all the other bonuses is the absolute best way to earn passive cash back since it's usually 1-5% cash back on your purchases.

ReceiptPal

ReceiptPal is an app that allows you to upload your receipts from almost anywhere that you go shopping. It's actually a really simple process.
When you sign up you'll be presented with almost little scratch cards which contains 4 spaces. Each space is filled with a receipt that you upload. Once you reach 4 receipts, you'll earn 100 points. 300/400 points = $1, so basically every 16 receipts you upload you'll receive ~$1.
"So, mr Fishering, how is this passive!?"
Unlike most receipt apps, ReceiptPal allows you to link your emails and amazon account and they'll automatically upload receipts for you. I actually let this app alone for several months and came back to thousands of points and cashed out instantly.
If you make purchases online, you'll essentially be earning ~$0.07 for every purchase you make if you have your email linked. They'll automatically find receipts and submit them, so it's 100% passive earnings.
If you also shop IRL you can submit physical receipts as well.
You can cash out instantly for $5 minimum in the form of a gift card. I'd recommend saving up at least 7,500 points for a $25 gift card, since it'll value points at 300/$1.

Paribus

Paribus is not your typical cash back site. Once you sign up you can link your different accounts (such as your amazon account) and it will automatically track your shopping. Paribus doesn't directly earn you cash back... it acts more like Walmart's saving catcher if you've ever heard of that. If an item you buy somewhere goes on sale shortly after or if there's any other discounts/promotions you may have missed when you originally bought something, they'll quietly get you a rebate on whatever you purchased. It can be very hit or miss. The catch is that they do take a cut of your savings. I believe it is 30% for all new users, but for each member you refer you can cut the cut by 5%. If you save $10, they'll charge you $3 to whatever card you have linked.
Personally I've found it to be really hit or miss, but I've found some incredible savings. I bought a gopro and I got $15 saved with Paribus, and I also got $50 back from some really nice headphones I picked up on amazon from Amazon. What's weird is I bought the headphones like 6 months prior to the rebate. Was shocking to see it, but I've really had some good luck with Paribus.

Sift (iOS | Android)

After the last post, I noticed a lot of people enjoyed Paribus, so I figured it'd be good to add some alternatives in this post.
So, here's Sift. Sift is a similar site to Paribus, and its key focus is on enforcing credit card benefits that many people don't know about. It's actually pretty nice. It'll let you pick your credit card and it'll tell you pretty much everything about your card. I have the Chase Freedom Unlimited card, and I was actually shocked to hear some of the benefits my card has that I have never been taking advantage of.
From Sift's site:
We automatically comb through your credit card policies to show you all your benefits in one place. For every purchase we let you know what benefits you are eligible for. We streamline the claim process to make it as simple as possible to get your money back.
You can link your emails as well as your amazon account as well and they'll make it really easy for you.
I have not actually used Sift much myself, so I cannot attest to how well it works, but the app store reviews are generally positive for Sift.

Trim Savings

Trim is similar to Paribus and Sift, but there's a certain void that it's trying to fill that the other two don't really seem to be filling.
Trim's main selling point is its bill negotiations. Instead of trying to save you money when a price drops, they're going to try and just nip it right in the bud and try to get your bills lower.
Right now they're mainly trying to negotiate with cell providers, internet providers, and cable providers.
Here's how the process goes:
  • Submit Your Bill: Submit your most recent cell phone, cable or internet bill to get started.
  • Trim Negotiates: Trim negotiates with your provider to get you discounts on your bill.
  • You Save Money: Trim takes 25% of annualized savings, but only on success—otherwise, it's free!
So, similar to Paribus, Trim does charge a fee. In a sense, I guess that's a good thing because it gives them an incentive to make sure to get some sort of bill decrease for you so they'll make some money too. Their rate is currently 25% of your bill negotiation. Of course, if they're not able to negotiate your bill for you, you won't pay them anything.
Trim does also monitor your bank account for you and they'll notify you of account changes (that you can set). For example, if they see a transaction worth $xxx, they'll notify me that I've made a large transaction. If there weren't already so many other sites/apps that could do that, I'd say that's a great feature that Trim offers.

Conclusion

Hopefully there's some new apps/sites you found out about in this post. If you sign up for some/all of these programs listed, you should probably find yourself earning some pretty decent cash back, depending on where/how much you spend. These apps are very satisfying to watch your balances build up on, and after a while it's very rewarding to cash out and treat yourself.
In this update I added some really great additions like iBotta, Venmo Rewards, and Bits, but I am very sad to see the turn that Drop has taken. I have been tipped off to some upcoming passive cash back opportunities that will be coming very soon, and I can't wait to share those and hopefully add them to this list in the near future.
As always if you have any questions please do leave a comment or send me a PM!
Thanks for reading!
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  • Read my other posts!
  • Please send me PMs with any questions you have about anything, or even just PM me if you want someone to talk to.
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15 Apps That Will Earn You Passive Cash Back (Best Passive Saving Apps 2019)

This is the updated 2019 Q1/Q2 version of this post. If you remember reading the previous iteration of this post, there are several changes to the list this time around. Some new additions, and some removals.
I'm not necessarily listing these apps/sites off from best to worst, but the higher names on the list came to my mind faster, which basically just means that I prefer them.
Note: Most of these apps will be US only. A couple on this list are for Canada as well, and I've tried to make notes about apps that work outside of the US.
Having said that, let's get right into it.

15 Passive Cash Back Apps 2019

Pei

Ref = fish

Pei is an automatic cash back app, very similar to Drop (listed below). When you sign up, you'll link a debit/credit card and you'll then automatically start earning cash back as you shop at certain Pei merchants (listed just below). There are so many merchants with Pei that you'll likely find yourself accidentally earning cash back on the app, without even knowing it. Pei is an app that you can really just link a card and then check back weeks later and surprise yourself with the money you've earned. The app has improved so much since the first time I posted about it, that it deserves the top spot in this post. You can cash out instantly as soon as you reach $15 in your account, and they're currently offering a cool $5 bonus when you sign up with a referral. My referral is "5LTZ1S". Big appreciate if you use my referral to sign up.

Pros of Pei:

So with all of that being said, let's talk about the stores you can find on Pei. Just note that these are only stores that are local to me, so if I don't have a certain store near me that Pei offers, I won't have it on this list. Additionally, Pei actually offers so many stores at this point that there's no way for me to actually keep this list up to date at all. There have been countless times where I've shopped somewhere that doesn't even come up as an option to earn with Pei but I'll see cash back listed on the app. It's really quite impressive.
In addition to receiving cash back at many locations, Pei also has a 'loyalty bonus' where if you shop at a certain store 5x you'll earn a bonus of $0.50!
They also do offer a "$2 on $20", essentially meaning that if you spend $20 at a certain merchant, you'll earn a $2 bonus. Local for me, I have the following options for $2 on $20:
I feel like a lot of people will enjoy this ~10% bonus on UbeLyft, especially if you ride a lot.
Most stores do have a $5 daily/weekly earning limit, so do be aware that if you spend more than ~$500, you'll likely reach an earning cap.

Drop - (iOS | Android)

Ref = fish

Drop is a passive loyalty program for US/Canada that allows you to choose 5 popular stores where you'll earn cash back (automatically) at as soon as you shop at them (both online or in store). You'll start off by linking your cards to drop (credit or debit), and they'll automatically track your purchases and once they notice a purchase from one of the 5 stores that you selected, you'll automatically earn cash back in the form of drop points which can be redeemed for instant gift cards to several stores.
As mentioned above, once you register you'll be presented with a list of store options. Do note that the stores you choose might be stuck with you forever, so pick stores you plan on shopping at a lot in the future, since you might never get the opportunity to change them.
For a new user signing up today, here are the current options you'll be presented and the corresponding rate:
Do note that this list may change at any time, but historically whatever rate you receive when you sign up is the rate that will be locked in for you.
Here are a couple things that are worth noting:
Other ways to earn with drop:
While the passive options have already been discussed, I think it's important to highlight some other features that the Drop app provides. In addition to your ongoing offers, you can also earn on Drop by participating in mini game challenges, one time offers, mobile offers/linked offers, Supercharge mini game, and referring friends.
Let's talk a little about that:

HOOCH Rewards (Ref Link)

HOOCH is a new addition to this list. Similar to Drop and Pei, HOOCH will automatically earn you cash back when you link a credit/debit card.
If you understand how Drop or Pei work, there's not really much more to say about HOOCH's cash back system.
You'll instantly earn 1% cash back at the following national brands:
  • Uber
  • iTunes
  • Starbucks
  • Domino's
  • Netflix
  • Shake Shack
  • Spotify
  • Audible
  • Redbox
  • Uber Eats
  • Hulu
  • In-N-Out
  • Chipotle*
*I don't see Chipotle listed, but I've definitely been earning cash back from Chipotle for each of my purchases.
In addition to 1% cash back at the national brands, here are some other ways you'll earn with HOOCH:
  • Connecting your first card ($5 bonus)
  • Drink at a HOOCH Venue (5%)
  • Book a Hotel (5%)
  • Dine at a HOOCH Venue (5%)
  • Refer friends
HOOCH started a long while back as a subscription app where you'll buy a subscription and you'll get a free drink at a HOOCH venue every day. The venues are extremely limited, so a majority of the people reading this won't find any value in that plan. Dining is just as rare.
Their referral system appears to be pretty generous. They're currently offering a $5 bonus for each friend you refer, as well as a 20% bonus on their earnings for life. Here's my referral link, if anyone cares enough to click it.
Here's the downfall of HOOCH:
You can only cash out for gift cards, and the minimum is $25.
For most people, this is a really big disadvantage of this app. Assuming that most people will only be earning through the 1% cash back brands, the minimum you'll need to spend in order to his the cash out minimum is $2500, which would likely take most people a really long time, since the brand options are not places where you're likely to spend a lot of money frequently...like, for example, a grocery store.
But still, you could probably earn yourself a few free gift cards every once in a while for a totally passive app.

Butter

Canada Only!

The ability to earn cash back with Butter is currently only available to Canadians. If you're in the US and you're interested in Butter, you can still use their limited US friendly version here. Canadians, don't use this link!
Butter is a service that allows you to track your ongoing subscription services while earning cash back from them 100% passively. When you sign up for Butter, you'll link your bank account/cards and it will automatically help you track your subscriptions (think Netflix, Dropbox... almost anything, really) by telling you how much you're spending on each. This actually seems like something I could really benefit from, because I just recently discovered a subscription that I totally didn't realize I was paying for for the last 6+ months. You'll also earn 1% cash back from each subscription Butter tracks.
I would provide a list of the subscriptions that you can earn cash back, but according to butter, the "list is in the 1000s."
You'll earn your cash back automatically by Interac e-Transfer once your cash back balance is over $25.
$25 is a steep minimum, but if you're someone who either has a lot of subscriptions or has some expensive qualifying subscriptions, it might not take too long to reach the minimum.
Since I'm not Canadian, my experience with Butter is very limited. You can read more about how cash back works in their help threads here.

Bumped - Sign up & join waitlist!

Bumped is an investing app, when you really boil it down. When you sign up you'll select one brand in each category (there are a lot of categories, you'll see below), and each time you shop at the selected brand, you'll earn the certain specified purchase back in the form of company stock. This is unique to all of the other apps on this list, because you're actually receiving company stock. Also, because of this, I think it's very important to note that in order to sign up for Bumped you'll need to enter your SSN since you will be opening up a brokerage account.
As of posting, the following are the category options that you can choose from:
I've bolded the brands I selected. Obviously you should pick a brand that you can find yourself using the most. Do note that if you pick a brand that you might want to change later, you'll get the opportunity to change your brands 3 times a year, at least 30 days in between.
Category Options
Burgers 3% at Jack in the Box
3% at McDonald's
3% at Wendy's
Coffee 2% at Dunkin' Donuts
2% at Starbucks
Drug Stores 2% at CVS
1% at Walgreens
Family Dining 2% at Applebees
2% at Chili's
2% at Olive Garden
2% at Red Robin
Grocery 1% at Kroger Family of Stores
Home Improvement 1% at The Home Depot
Mexican Food 2% at Chipotle Mexican Grill
2% at Taco Bell
Music Subscriptions 1% at Pandora
5% at Spotify
Pizza 1% at Domino's
5% at Papa John's
2% at Pizza Hut
Superstores 1% at Target
1% at Walmart
Telecommunications 1% at AT&T
1% at T-Mobile
3% at Verizon Wireless
Video Subscriptions 1% at Netflix
5% at Sling TV
Vineyards 1% at Willamette Valley Vineyards
One thing that is listed on the app is that if you want to move your way up on the waitlist you can refer your friends to join the waitlist as well.

Uber Visa Local Offers

Shop or dine out, get Uber credits back.
Use your Visa card next time you dine out or go on a shopping spree at a featured store and earn Uber credits toward future rides. To join, go to settings in your Uber app and tap on Visa Local Offers.
Whenever you shop out at certain places you'll instantly receive uber credits to your account. It's really simple, and yes, this does stack with all of the other cash back apps you might be a part of.
The brands they offer do change semi-frequently, so you should check them from time to time.
In the past there have been 100% cash back offers for streaming services, and 10-20% cash back at Sam's Club. Considering that these offers do stack, there is some really great potential if you find any value in uber credit.
If you're interested in activating the Visa local offers, you'll need to make sure you have a visa card linked to your Uber account first, and then you should see "activate local offers" in the app settings or payment settings of Uber.
There's really not much to say about Visa Local Offers, but if you're looking for some FAQ/Terms, feel free to check them all out here.

Groupon+

Groupon+ is a card link program introduced by Groupon that will automatically earn you cash back when you shop at select local restaurants.
The program is pretty easy to understand, but it isn't completely passive. In order to receive cash back at the local restaurants, you'll first need to activate the offer. So for example, I have an offer for 20% cash back at Dairy Queen (10% cash back after first purchase).
For reference, here's the offer in question. Once I click claim, the offer will automatically be applied to my credit card that I have linked (you'll need to link a credit card/debit card the first time you try to claim an offer). Now that it's claimed, when I go into this dairy queen location and spend with my linked card, I'll automatically receive a rebate after my purchase. What's great about Groupon+ is that the rebate will instantly go as a credit/debit card statement adjustment. So if I'm getting 10% cash back somewhere and I spend $18, I'll automatically see an addition of $1.80 on my credit card statement. It's pretty satisfying.
Note: The location you claim does seem to matter. For example, linked above is a Dairy Queen location in Joliet, IL. It appears to be that I'd only receive the cash back at this dairy queen location. For me if I search Groupon for "dairy queen", I'll find a ton of groupon+ offers (some of them different!) for many local Dairy Queens. Just make sure you've selected the right location if you're earning from a chain restaurant.
Overall I think Groupon+ is worth checking out. Just note that a lot of the options will be for local businesses.

Cash App "Boosts"

For those if you who don't know what Cash App is, Cash App is an app by Square that lets you send and receive payments. They've also expanded their app to support bitcoin purchases, and they'll also let you use the app as a checking account. With the cash app you can also sign up to receive the Cash Card, which is a debit card that is funded with your cash app balance.
If you have not used Cash App before, they do have a fancy referral program where when you sign up and send $50 you'll receive $5 and so will I. I do want to make this very clear: Cash App referrals can see the full name of the person who refers you, and the person who refers you will have your full name shown to them. If you're really private about personal information, be careful whose referral link you use. If you trust me, here's my referral link.
Please note that if you want to use the cash app boosts that I'm talking about, you'll need to be 18 years old and have the cash card (which is free, don't worry)!
Cash App announced that their cash card will be seeing 'boosts'. Boosts are their fancy way of saying that when you use our card at certain locations you'll receive a discount.
Once you have the cash card, you'll notice on the app below your card you'll be able to select your boost. The following are my personal boost options, as of posting. The boosts change frequently,
  • 15% Off Doordash
  • $1 Off Any Coffee Shop
  • 5% off Whole Foods
  • 10% Off Buffalo Wild Wings
  • 10% Off Little Caesars Pizza
  • $1 Off Panera
  • $5 Off Any Purchase (requires using the card 10x to activate)
  • 10% Off Chipotle <3
  • 10% Off Dairy Queen
So there are quite a few things I want to say & clear up.
  1. You can use a boost every 1 hour.
  2. You must select the boost that you'd like to use prior to the purchase. AFAIK you're able to swap which boost you want to use as often as you'd like. So when you walk into Chick-Fil-A, just check and make sure your boost is set to CFA. If not, swap it.
  3. In order to apply the boost, you must pay with the Cash Card. It's automatic. If your total is $6 and you're saving 10%, you'll only need a Cash app balance of $5.4 for the transaction. Cash App will cover the other $0.60.
  4. If you link your Cash Card to Apple Pay, you can pay with it that way and the boosts will still be applied.
  5. This is important. If you have a boost applied, it won't expire. I'll repeat this. If you have a boost applied, It won't expire. So if Square wants to remove your beloved Chipotle boost, it'll stick with you until you decide to swap from it. If you really like it, don't swap! Do realize that just because you have the Cash Card on the app, you won't see the boosts. You need to have the physical Cash Card in your possession for the boosts to show up.
I've been really enjoying using the Cash Card for purchases. Especially at CFA & Chipotle. It's really not a hassle. When I'm standing in line at Chipotle I'll open the app and make sure my cash app balance is enough and if not I'll just add funds right away. The boost is applied immediately which makes you feel good. It's like the guac is free at Chipotle after you use the cash card. The only downside to using the Cash Card is that you won't be able to stack discounts with anything else on this list... Unless you find a way to link the Cash Card to any of the things on this list. Regardless, 10% off at Chipotle is the best I have found.

Empyr Apps

I've listed this as "Empyr Apps" because all of these apps are basically just the same thing. I'll take the example of Swagbucks Local since that's what most of you reading this will already be using.
If you paid attention in the Visa Local Offers section of this post, you'll find that the Empyr apps are actually very similar to those visa local offers.
When you shop at a certain store/restaurant, you'll earn with the empyr app you have linked. It's actually really not that special.
Here's a list of some/most of the current Empyr powered apps:
IMPORTANT NOTE: You're only allowed to use one Empyr app at a time! As soon as you link up with another Empyr app, you'll be disqualified from another until you link back up.
I do want to go into this list a bit this time around since there seem to be more and more Empyr apps popping up.
Dosh might be the most popular of these apps right now. Dosh has nice referral programs as well as sign up bonuses that makes it very enticing. Dosh also has very decent cash back at the stores they offer.
Swagbucks Local will always be popular among Swagbucks users. What's really nice about Swagbucks Local is that the payouts are always instantly converted to Swagbucks, which can help you cash out sooner. You'll also likely get a slot in the Swago board filled out, which might be beneficial to you.
Pei is a really cool new app on Empyr that offers cash back at a lot of places you likely shop at. I talk about it above.
RetailMeNot is a newer one on this list and it's the only one here that I feel like I recommend you go on/off with. RetailMeNot has recently been doing a lot of "Spend $X, get $Y" deals at a lot of the stores they offer. For example, they are currently offering $5 Cash back for in Store purchases of $30+ at Staples. This is a really good deal for an Empyr app, and would probably be my pick for that transaction, but not most of the time since they don't have very many stores as options.
I personally choose Dosh as my Empyr app. Dosh has a lot of funding, which allows them to offer some very generous offers from time to time.

CoinSeed (Ref | Nonref)

CoinSeed preface: I don't recommend CoinSeed as an option solely for passive cash back. The app has monthly fees, and even for just $1 a month, it will cut either entirely into your passive cash back earned, causing a net loss, or it'll take a huge cut. Only use CoinSeed for passive cash back if you actually want to use CoinSeed.
CoinSeed originally released about a year ago as an app similar to Acorns, where you're able to passively invest money by setting up a recurring investment or invest through 'rounding up' transactions. What makes CoinSeed different from Acorns is that they will take your money and invest it into cryptocurrency. Just recently they have also added a cash back section to the app which allows you to earn points in the app each time you spend at certain locations. Before we talk about the cash back from this app, I want to talk a bit about what you're getting yourself into.
Since CoinSeed is an app like Acorns, they're expecting you to use the app to invest money. If you're reading this and you're actually thinking that you'd be interested in using this app to invest into Bitcoin, there are a couple things I think should be pointed out. 1. There is a 1% fee taken from each deposit. 2. There is a fee of $1 per month that you use the app. Your first month is waived, so the fee will only kick in on the second month. The wording is confusing, but it seems like the fee will only apply if you deposit and invest in the given month. So let's talk about cash back.
Similar to many apps on this list, you'll link your cards to CoinSeed and that's how they'll track your transactions. CoinSeed actually has two different cash back offers. First of all they offer regular portals in the app. For example, shop at through our link and earn cash back! The reason I think this is important is because currently they're offering 2% cash back at Amazon.com when you shop through their link. Cash back is uncommon enough to find at amazon, but what's great is that the only restrictions listed is, "Doesn't apply on Gift Card." Which makes me think that so long as you're buying anything other than gift cards, you should be eligible for the 2% cash back. I've reached out to CoinSeed to clarify exactly what they mean by that (whether or not it is referring to just Amazon gift cards or third party gift cards as well).
The other offers on the app, which they call "Premium" are the passive cash back options, meaning that every time you spend at any of the brands listed, you'll earn cash back. Here are the options that are currently available:
  • Uber (1% cashback)
  • Netflix (1% cashback)
  • Starbucks (1% cashback)
  • 7-Eleven (1% cashback)
There's one issue, though. When you try to activate the premium offers, a popup will appear saying, "Sorry, this feature is only available for users who have made an investment using the auto investing feature." What this is essentially saying is that in order to earn cash back from premium offers you must invest with the app.
CoinSeed seems to want to emphasize that the cash back is only a benefit of using their app to invest in crypto. For most people, investing in crypto can be near feeless using alternate methods, and in my opinion this app really doesn't provide many/any benefits that would make me want to even consider using this app for the heavy fees that they take. You would need to be spending a lot of money with their cash back retailers in order for the 'I'm only here for the cash back' route to even start to sound viable.

Credit Cards

I've refrained from listing credit cards on this post for a long time. Maybe because I thought it was too obvious, or maybe it was unnecessary, but since the number of younger people using this subreddit has been increasing I feel like I'd be doing a disservice to entirely disclude a blurb about credit cards.
If you have a credit card and you don't really care to learn more about credit cards, just skip this section. If you're reading this post and you're 18+ (or if you're about to turn 18) and you don't have a credit card or don't know much about credit cards, I think it's a good idea to look into them. I'm not going to tell you exactly what a credit card is since that's an easy google search, but I will tell you about some benefits, especially about those that pertain to the benefits of this post.
Credit cards are great because you can essentially spend money just like you normally would*, but you'll also earn cash back on all/almost all of the purchases you make with them. Additionally, especially if you're young, getting a credit card is a really great because it will start helping you build credit. I'm currently looking into renting a house next year with two housemates and I'm shocked to see that neither of them have any credit. They quite honestly couldn't possibly live in a house without me, since I'm the only one who has credit.
*Make sure you're paying off your credit card every month (or however often you need)... Don't let yourself get into debt. I'd argue if you think you're going to get into debt with a credit card, I'd personally suggest you don't get a credit card.
While you need to be 18 years old to get your own credit card, if you're under 18, you can still start gaining credit. Most major credit card companies will allow your parents to add you as an authorized signer on their credit card (which basically just means that you'll get permission to use their cards). An effect of this is that you'll start gaining credit. If you're looking to build up credit but you don't think you're ready for a credit card, I'd really recommend you ask your parents about becoming an authorized signer. It's a good conversation to have with your parents.
Anyways, let's talk about the cash back benefits, since that's what this post is about, after all.
There's a lot of credit cards. This post isn't going to list them all out. This isn't really even the right subreddit for credit card discussion.
Nerdwallet has a great list of credit cards, so you might want to check it out here, but I'm going to share my own personal situation and recommend that for anyone who might relate, since the average age on this subreddit is around the 18-25 range.
My first credit card was the Chase Freedom Unlimited card. I actually still use this credit card very frequently since it's a pretty balanced card. A couple years back on my 18th birthday I went into my local chase branch and physically had to beg for this card (it's a really beginner card, trust me). After getting denied both in bank and online, I finally found a rep who would give me a calm $500 credit limit for the card. Note: I had no credit before hand.
The Chase Freedom Unlimited card offers 1.5% cash back on all purchases with the card... so when you think about it, I'd previously been spending $100 at Chipotle every month with my debit card, but with the Freedom Unlimited card, I would now be getting 1.5% cash back ($1.50) back on those purchases. It's just an easy way to save money on everything.
If you use the other apps I suggest in this post, you'll likely earn cash back passively from them on certain brands that are featured, but stacking a credit card cash back on top of all the other bonuses is the absolute best way to earn passive cash back since it's usually 1-5% cash back on your purchases.

ReceiptPal

ReceiptPal is an app that allows you to upload your receipts from almost anywhere that you go shopping. It's actually a really simple process.
When you sign up you'll be presented with almost little scratch cards which contains 4 spaces. Each space is filled with a receipt that you upload. Once you reach 4 receipts, you'll earn 100 points. 300/400 points = $1, so basically every 16 receipts you upload you'll receive ~$1.
"So, mr Fishering, how is this passive!?"
Unlike most receipt apps, ReceiptPal allows you to link your emails and amazon account and they'll automatically upload receipts for you. I actually let this app alone for several months and came back to thousands of points and cashed out instantly.
If you make purchases online, you'll essentially be earning ~$0.07 for every purchase you make if you have your email linked. They'll automatically find receipts and submit them, so it's 100% passive earnings.
If you also shop IRL you can submit physical receipts as well.
You can cash out instantly for $5 minimum in the form of a gift card. I'd recommend saving up at least 7,500 points for a $25 gift card, since it'll value points at 300/$1.

Paribus

Paribus is not your typical cash back site. Once you sign up you can link your different accounts (such as your amazon account) and it will automatically track your shopping. Paribus doesn't directly earn you cash back... it acts more like Walmart's saving catcher if you've ever heard of that. If an item you buy somewhere goes on sale shortly after or if there's any other discounts/promotions you may have missed when you originally bought something, they'll quietly get you a rebate on whatever you purchased. It can be very hit or miss. The catch is that they do take a cut of your savings. I believe it is 30% for all new users, but for each member you refer you can cut the cut by 5%. If you save $10, they'll charge you $3 to whatever card you have linked.
Personally I've found it to be really hit or miss, but I've found some incredible savings. I bought a gopro and I got $15 saved with Paribus, and I also got $50 back from some really nice headphones I picked up on amazon from Amazon. What's weird is I bought the headphones like 6 months prior to the rebate. Was shocking to see it, but I've really had some good luck with Paribus.

Sift (iOS | Android)

After the last post, I noticed a lot of people enjoyed Paribus, so I figured it'd be good to add some alternatives in this post.
So, here's Sift. Sift is a similar site to Paribus, and its key focus is on enforcing credit card benefits that many people don't know about. It's actually pretty nice. It'll let you pick your credit card and it'll tell you pretty much everything about your card. I have the Chase Freedom Unlimited card, and I was actually shocked to hear some of the benefits my card has that I have never been taking advantage of.
From Sift's site:
We automatically comb through your credit card policies to show you all your benefits in one place. For every purchase we let you know what benefits you are eligible for. We streamline the claim process to make it as simple as possible to get your money back.
You can link your emails as well as your amazon account as well and they'll make it really easy for you.
I have not actually used Sift much myself, so I cannot attest to how well it works, but the app store reviews are generally positive for Sift.

Trim Savings

Trim is similar to Paribus and Sift, but there's a certain void that it's trying to fill that the other two don't really seem to be filling.
Trim's main selling point is its bill negotiations. Instead of trying to save you money when a price drops, they're going to try and just nip it right in the bud and try to get your bills lower.
Right now they're mainly trying to negotiate with cell providers, internet providers, and cable providers.
Here's how the process goes:
  • Submit Your Bill: Submit your most recent cell phone, cable or internet bill to get started.
  • Trim Negotiates: Trim negotiates with your provider to get you discounts on your bill.
  • You Save Money: Trim takes 25% of annualized savings, but only on success—otherwise, it's free!
So, similar to Paribus, Trim does charge a fee. In a sense, I guess that's a good thing because it gives them an incentive to make sure to get some sort of bill decrease for you so they'll make some money too. Their rate is currently 25% of your bill negotiation. Of course, if they're not able to negotiate your bill for you, you won't pay them anything.
Trim does also monitor your bank account for you and they'll notify you of account changes (that you can set). For example, if they see a transaction worth $xxx, they'll notify me that I've made a large transaction. If there weren't already so many other sites/apps that could do that, I'd say that's a great feature that Trim offers.

Conclusion

Hopefully there's some new apps/sites you found out about in this post. If you sign up for some/all of these programs listed, you should probably find yourself earning some pretty decent cash back, depending on where/how much you spend. These apps are very satisfying to watch your balances build up on, and after a while it's very rewarding to cash out and treat yourself.
Since the last version of this post, I have removed a lot of shitty offers, that aren't really worth anyone's time. I removed Samsung Rewards since it's been devalued to a point that using their app solely for rewards isn't worth it at all. Samsung rewards is only valuable for non-passive offers that they occasionally have.
In this update I added some really great additions, but did remove a previous favorite, Spent, which is currently offline. I'm ready to edit the post if anything changes with Spent, but it's seeming more and more unlikely since the app did go so downhill so fast.
As always if you have any questions please do leave a comment or send me a PM!
Thanks for reading!
submitted by Fishering to beermoney [link] [comments]

Technical: A Brief History of Payment Channels: from Satoshi to Lightning Network

Who cares about political tweets from some random country's president when payment channels are a much more interesting and are actually capable of carrying value?
So let's have a short history of various payment channel techs!

Generation 0: Satoshi's Broken nSequence Channels

Because Satoshi's Vision included payment channels, except his implementation sucked so hard we had to go fix it and added RBF as a by-product.
Originally, the plan for nSequence was that mempools would replace any transaction spending certain inputs with another transaction spending the same inputs, but only if the nSequence field of the replacement was larger.
Since 0xFFFFFFFF was the highest value that nSequence could get, this would mark a transaction as "final" and not replaceable on the mempool anymore.
In fact, this "nSequence channel" I will describe is the reason why we have this weird rule about nLockTime and nSequence. nLockTime actually only works if nSequence is not 0xFFFFFFFF i.e. final. If nSequence is 0xFFFFFFFF then nLockTime is ignored, because this if the "final" version of the transaction.
So what you'd do would be something like this:
  1. You go to a bar and promise the bartender to pay by the time the bar closes. Because this is the Bitcoin universe, time is measured in blockheight, so the closing time of the bar is indicated as some future blockheight.
  2. For your first drink, you'd make a transaction paying to the bartender for that drink, paying from some coins you have. The transaction has an nLockTime equal to the closing time of the bar, and a starting nSequence of 0. You hand over the transaction and the bartender hands you your drink.
  3. For your succeeding drink, you'd remake the same transaction, adding the payment for that drink to the transaction output that goes to the bartender (so that output keeps getting larger, by the amount of payment), and having an nSequence that is one higher than the previous one.
  4. Eventually you have to stop drinking. It comes down to one of two possibilities:
    • You drink until the bar closes. Since it is now the nLockTime indicated in the transaction, the bartender is able to broadcast the latest transaction and tells the bouncers to kick you out of the bar.
    • You wisely consider the state of your liver. So you re-sign the last transaction with a "final" nSequence of 0xFFFFFFFF i.e. the maximum possible value it can have. This allows the bartender to get his or her funds immediately (nLockTime is ignored if nSequence is 0xFFFFFFFF), so he or she tells the bouncers to let you out of the bar.
Now that of course is a payment channel. Individual payments (purchases of alcohol, so I guess buying coffee is not in scope for payment channels). Closing is done by creating a "final" transaction that is the sum of the individual payments. Sure there's no routing and channels are unidirectional and channels have a maximum lifetime but give Satoshi a break, he was also busy inventing Bitcoin at the time.
Now if you noticed I called this kind of payment channel "broken". This is because the mempool rules are not consensus rules, and cannot be validated (nothing about the mempool can be validated onchain: I sigh every time somebody proposes "let's make block size dependent on mempool size", mempool state cannot be validated by onchain data). Fullnodes can't see all of the transactions you signed, and then validate that the final one with the maximum nSequence is the one that actually is used onchain. So you can do the below:
  1. Become friends with Jihan Wu, because he owns >51% of the mining hashrate (he totally reorged Bitcoin to reverse the Binance hack right?).
  2. Slip Jihan Wu some of the more interesting drinks you're ordering as an incentive to cooperate with you. So say you end up ordering 100 drinks, you split it with Jihan Wu and give him 50 of the drinks.
  3. When the bar closes, Jihan Wu quickly calls his mining rig and tells them to mine the version of your transaction with nSequence 0. You know, that first one where you pay for only one drink.
  4. Because fullnodes cannot validate nSequence, they'll accept even the nSequence=0 version and confirm it, immutably adding you paying for a single alcoholic drink to the blockchain.
  5. The bartender, pissed at being cheated, takes out a shotgun from under the bar and shoots at you and Jihan Wu.
  6. Jihan Wu uses his mystical chi powers (actually the combined exhaust from all of his mining rigs) to slow down the shotgun pellets, making them hit you as softly as petals drifting in the wind.
  7. The bartender mutters some words, clothes ripping apart as he or she (hard to believe it could be a she but hey) turns into a bear, ready to maul you for cheating him or her of the payment for all the 100 drinks you ordered from him or her.
  8. Steely-eyed, you stand in front of the bartender-turned-bear, daring him to touch you. You've watched Revenant, you know Leonardo di Caprio could survive a bear mauling, and if some posh actor can survive that, you know you can too. You make a pose. "Drunken troll logic attack!"
  9. I think I got sidetracked here.
Lessons learned?

Spilman Channels

Incentive-compatible time-limited unidirectional channel; or, Satoshi's Vision, Fixed (if transaction malleability hadn't been a problem, that is).
Now, we know the bartender will turn into a bear and maul you if you try to cheat the payment channel, and now that we've revealed you're good friends with Jihan Wu, the bartender will no longer accept a payment channel scheme that lets one you cooperate with a miner to cheat the bartender.
Fortunately, Jeremy Spilman proposed a better way that would not let you cheat the bartender.
First, you and the bartender perform this ritual:
  1. You get some funds and create a transaction that pays to a 2-of-2 multisig between you and the bartender. You don't broadcast this yet: you just sign it and get its txid.
  2. You create another transaction that spends the above transaction. This transaction (the "backoff") has an nLockTime equal to the closing time of the bar, plus one block. You sign it and give this backoff transaction (but not the above transaction) to the bartender.
  3. The bartender signs the backoff and gives it back to you. It is now valid since it's spending a 2-of-2 of you and the bartender, and both of you have signed the backoff transaction.
  4. Now you broadcast the first transaction onchain. You and the bartender wait for it to be deeply confirmed, then you can start ordering.
The above is probably vaguely familiar to LN users. It's the funding process of payment channels! The first transaction, the one that pays to a 2-of-2 multisig, is the funding transaction that backs the payment channel funds.
So now you start ordering in this way:
  1. For your first drink, you create a transaction spending the funding transaction output and sending the price of the drink to the bartender, with the rest returning to you.
  2. You sign the transaction and pass it to the bartender, who serves your first drink.
  3. For your succeeding drinks, you recreate the same transaction, adding the price of the new drink to the sum that goes to the bartender and reducing the money returned to you. You sign the transaction and give it to the bartender, who serves you your next drink.
  4. At the end:
    • If the bar closing time is reached, the bartender signs the latest transaction, completing the needed 2-of-2 signatures and broadcasting this to the Bitcoin network. Since the backoff transaction is the closing time + 1, it can't get used at closing time.
    • If you decide you want to leave early because your liver is crying, you just tell the bartender to go ahead and close the channel (which the bartender can do at any time by just signing and broadcasting the latest transaction: the bartender won't do that because he or she is hoping you'll stay and drink more).
    • If you ended up just hanging around the bar and never ordering, then at closing time + 1 you broadcast the backoff transaction and get your funds back in full.
Now, even if you pass 50 drinks to Jihan Wu, you can't give him the first transaction (the one which pays for only one drink) and ask him to mine it: it's spending a 2-of-2 and the copy you have only contains your own signature. You need the bartender's signature to make it valid, but he or she sure as hell isn't going to cooperate in something that would lose him or her money, so a signature from the bartender validating old state where he or she gets paid less isn't going to happen.
So, problem solved, right? Right? Okay, let's try it. So you get your funds, put them in a funding tx, get the backoff tx, confirm the funding tx...
Once the funding transaction confirms deeply, the bartender laughs uproariously. He or she summons the bouncers, who surround you menacingly.
"I'm refusing service to you," the bartender says.
"Fine," you say. "I was leaving anyway;" You smirk. "I'll get back my money with the backoff transaction, and posting about your poor service on reddit so you get negative karma, so there!"
"Not so fast," the bartender says. His or her voice chills your bones. It looks like your exploitation of the Satoshi nSequence payment channel is still fresh in his or her mind. "Look at the txid of the funding transaction that got confirmed."
"What about it?" you ask nonchalantly, as you flip open your desktop computer and open a reputable blockchain explorer.
What you see shocks you.
"What the --- the txid is different! You--- you changed my signature?? But how? I put the only copy of my private key in a sealed envelope in a cast-iron box inside a safe buried in the Gobi desert protected by a clan of nomads who have dedicated their lives and their childrens' lives to keeping my private key safe in perpetuity!"
"Didn't you know?" the bartender asks. "The components of the signature are just very large numbers. The sign of one of the signature components can be changed, from positive to negative, or negative to positive, and the signature will remain valid. Anyone can do that, even if they don't know the private key. But because Bitcoin includes the signatures in the transaction when it's generating the txid, this little change also changes the txid." He or she chuckles. "They say they'll fix it by separating the signatures from the transaction body. They're saying that these kinds of signature malleability won't affect transaction ids anymore after they do this, but I bet I can get my good friend Jihan Wu to delay this 'SepSig' plan for a good while yet. Friendly guy, this Jihan Wu, it turns out all I had to do was slip him 51 drinks and he was willing to mine a tx with the signature signs flipped." His or her grin widens. "I'm afraid your backoff transaction won't work anymore, since it spends a txid that is not existent and will never be confirmed. So here's the deal. You pay me 99% of the funds in the funding transaction, in exchange for me signing the transaction that spends with the txid that you see onchain. Refuse, and you lose 100% of the funds and every other HODLer, including me, benefits from the reduction in coin supply. Accept, and you get to keep 1%. I lose nothing if you refuse, so I won't care if you do, but consider the difference of getting zilch vs. getting 1% of your funds." His or her eyes glow. "GENUFLECT RIGHT NOW."
Lesson learned?

CLTV-protected Spilman Channels

Using CLTV for the backoff branch.
This variation is simply Spilman channels, but with the backoff transaction replaced with a backoff branch in the SCRIPT you pay to. It only became possible after OP_CHECKLOCKTIMEVERIFY (CLTV) was enabled in 2015.
Now as we saw in the Spilman Channels discussion, transaction malleability means that any pre-signed offchain transaction can easily be invalidated by flipping the sign of the signature of the funding transaction while the funding transaction is not yet confirmed.
This can be avoided by simply putting any special requirements into an explicit branch of the Bitcoin SCRIPT. Now, the backoff branch is supposed to create a maximum lifetime for the payment channel, and prior to the introduction of OP_CHECKLOCKTIMEVERIFY this could only be done by having a pre-signed nLockTime transaction.
With CLTV, however, we can now make the branches explicit in the SCRIPT that the funding transaction pays to.
Instead of paying to a 2-of-2 in order to set up the funding transaction, you pay to a SCRIPT which is basically "2-of-2, OR this singlesig after a specified lock time".
With this, there is no backoff transaction that is pre-signed and which refers to a specific txid. Instead, you can create the backoff transaction later, using whatever txid the funding transaction ends up being confirmed under. Since the funding transaction is immutable once confirmed, it is no longer possible to change the txid afterwards.

Todd Micropayment Networks

The old hub-spoke model (that isn't how LN today actually works).
One of the more direct predecessors of the Lightning Network was the hub-spoke model discussed by Peter Todd. In this model, instead of payers directly having channels to payees, payers and payees connect to a central hub server. This allows any payer to pay any payee, using the same channel for every payee on the hub. Similarly, this allows any payee to receive from any payer, using the same channel.
Remember from the above Spilman example? When you open a channel to the bartender, you have to wait around for the funding tx to confirm. This will take an hour at best. Now consider that you have to make channels for everyone you want to pay to. That's not very scalable.
So the Todd hub-spoke model has a central "clearing house" that transport money from payers to payees. The "Moonbeam" project takes this model. Of course, this reveals to the hub who the payer and payee are, and thus the hub can potentially censor transactions. Generally, though, it was considered that a hub would more efficiently censor by just not maintaining a channel with the payer or payee that it wants to censor (since the money it owned in the channel would just be locked uselessly if the hub won't process payments to/from the censored user).
In any case, the ability of the central hub to monitor payments means that it can surveill the payer and payee, and then sell this private transactional data to third parties. This loss of privacy would be intolerable today.
Peter Todd also proposed that there might be multiple hubs that could transport funds to each other on behalf of their users, providing somewhat better privacy.
Another point of note is that at the time such networks were proposed, only unidirectional (Spilman) channels were available. Thus, while one could be a payer, or payee, you would have to use separate channels for your income versus for your spending. Worse, if you wanted to transfer money from your income channel to your spending channel, you had to close both and reshuffle the money between them, both onchain activities.

Poon-Dryja Lightning Network

Bidirectional two-participant channels.
The Poon-Dryja channel mechanism has two important properties:
Both the original Satoshi and the two Spilman variants are unidirectional: there is a payer and a payee, and if the payee wants to do a refund, or wants to pay for a different service or product the payer is providing, then they can't use the same unidirectional channel.
The Poon-Dryjam mechanism allows channels, however, to be bidirectional instead: you are not a payer or a payee on the channel, you can receive or send at any time as long as both you and the channel counterparty are online.
Further, unlike either of the Spilman variants, there is no time limit for the lifetime of a channel. Instead, you can keep the channel open for as long as you want.
Both properties, together, form a very powerful scaling property that I believe most people have not appreciated. With unidirectional channels, as mentioned before, if you both earn and spend over the same network of payment channels, you would have separate channels for earning and spending. You would then need to perform onchain operations to "reverse" the directions of your channels periodically. Secondly, since Spilman channels have a fixed lifetime, even if you never used either channel, you would have to periodically "refresh" it by closing it and reopening.
With bidirectional, indefinite-lifetime channels, you may instead open some channels when you first begin managing your own money, then close them only after your lawyers have executed your last will and testament on how the money in your channels get divided up to your heirs: that's just two onchain transactions in your entire lifetime. That is the potentially very powerful scaling property that bidirectional, indefinite-lifetime channels allow.
I won't discuss the transaction structure needed for Poon-Dryja bidirectional channels --- it's complicated and you can easily get explanations with cute graphics elsewhere.
There is a weakness of Poon-Dryja that people tend to gloss over (because it was fixed very well by RustyReddit):
Another thing I want to emphasize is that while the Lightning Network paper and many of the earlier presentations developed from the old Peter Todd hub-and-spoke model, the modern Lightning Network takes the logical conclusion of removing a strict separation between "hubs" and "spokes". Any node on the Lightning Network can very well work as a hub for any other node. Thus, while you might operate as "mostly a payer", "mostly a forwarding node", "mostly a payee", you still end up being at least partially a forwarding node ("hub") on the network, at least part of the time. This greatly reduces the problems of privacy inherent in having only a few hub nodes: forwarding nodes cannot get significantly useful data from the payments passing through them, because the distance between the payer and the payee can be so large that it would be likely that the ultimate payer and the ultimate payee could be anyone on the Lightning Network.
Lessons learned?

Future

After LN, there's also the Decker-Wattenhofer Duplex Micropayment Channels (DMC). This post is long enough as-is, LOL. But for now, it uses a novel "decrementing nSequence channel", using the new relative-timelock semantics of nSequence (not the broken one originally by Satoshi). It actually uses multiple such "decrementing nSequence" constructs, terminating in a pair of Spilman channels, one in both directions (thus "duplex"). Maybe I'll discuss it some other time.
The realization that channel constructions could actually hold more channel constructions inside them (the way the Decker-Wattenhofer puts a pair of Spilman channels inside a series of "decrementing nSequence channels") lead to the further thought behind Burchert-Decker-Wattenhofer channel factories. Basically, you could host multiple two-participant channel constructs inside a larger multiparticipant "channel" construct (i.e. host multiple channels inside a factory).
Further, we have the Decker-Russell-Osuntokun or "eltoo" construction. I'd argue that this is "nSequence done right". I'll write more about this later, because this post is long enough.
Lessons learned?
submitted by almkglor to Bitcoin [link] [comments]

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