The Dosh cash back app lets you link your credit and debit cards to automatically get cash back when you shop, eat, travel, and more at participating local and national merchants, plus Dosh is offering a $20 referral bonus for current users, and new users will also receive a $1 bonus when you link a debit or credit card (no purchase required). [Read More] Dosh Cash Back App $1 Sign-Up Bonus and $20 Referral Rewards