United's MileagePlus X app makes it easy to earn extra miles on everyday purchases, and you can stack your rewards with ...

BUY $35 OF SELECT GROCERIES, SAVE $10: As of Jan. 10, spend $35 on select groceries at Amazon and get $10 off your purchase.

In a nutshell: Redeem receipts from nearly anywhere for points; cash them in for gift cards. Details: Fetch Rewards has risen in popularity, particularly when it comes to saving on groceries ...

Check out this list of 42 apps that will pay you money. From games to surveys to mystery shopping and more, there is ...