FOLD is in its last few of days of open registration for their Bitcoin Rewards credit card (closes on Oct 9th).
You're awarded 20,000 sat on sign-up, and 2,000 sat for every week that you spin their Wheel. (approx $2.39)


This service rewards you in bitcoin for purchases. You can currently purchase gift-cards with either Bitcoin/Lightning or with a traditionally funded credit/debit card and you will receive a percentage back (from 2-20%) as a reward in Bitcoin.

They also have a 'instant win' Wheel which awards you with either a larger percentage back, or small amount of bitcoin for each play. If you play 7 days in a row you receive and additional 2,000 Satoshi. Every 7 days.

There is 45.39% chance you will win 100 sats
a 12.61% chance to win 500 sats
and 30.26% chance that you will gain an extra 0.25% on your next order. (most orders are $25)

this gives an 88.26% chance that your reward will be very small, and by playing multiple days in a row, you will likely accumulate at least a few 'dust-sized' rewards.



The danger comes from the possibility that these 'dust' transactions will be able to be traced to you once you transfer the funds to your regular wallet. If these small amounts awarded live on the block-chain, they will then be traceable once they move into your regular Bitcoin wallet .... and especially if you have purchased any giftcards from FOLD, your identity is known and confirmed in the transaction.

One way around this would be to send the funds from FOLD directly to a Bitcoin mixer, and then forward them to your address(es). That would provide at least a single jump between the known identity coins, and your private controlled wallet. 

It's unknown if Fold is holding the awarded bitcoin in individual account wallets controlled by them until you move them into your private wallet (in which case it could be possible to follow the dust trail) .. or if they are holding the 'promise' of bitcoin reward in a database structure and then compute a single total bitcoin amount when you request the transfer to your personal wallet.

If it is the later, these small rewards shouldn't be individually traceable, but if it's the former they may be. In either case pre-mixing the rewarded coins before sending them to your private wallet should help mitigate any possible attack vector that could de-anonymize your private wallet.

With these privacy tools in mind, FOLD is a rather good deal to gain rewards directly in Bitcoin. For instance, you can purchase Amazon gift-cards and gain 4% of your purchase back in Bitcoin. Golfers can gain 20% back on purchases, plus rewards for Playstation, Xbox, Uber, Starbucks, Airlines, Macys, etc... With Christmas coming up, you can pre-purchase giftcards to do your shopping with and gain Bitcoin at the same time. If you use a credit/debit card that gives you a % reward as well, you'll get double rewards for all purchases.

You can sign up here before Oct 9th. Just be safe when you claim your rewards and transfer to your private wallet, and it's a great way to gain a couple dollars in free Bitcoins