Groupon's new app offers cash back on all kinds of purchases
Groupon has just kicked off an app called Snap, whereby you're notified of promoted brands, and if you pick up something of theirs from any store, you can take a picture of the receipt and earn cash back on your account for doing so. After you earn $20, they'll mail you a check. It's an interesting new take on classic couponing that produces the same end result with considerably less clutter. You can also earn cash for recruiting friends to redeem their receipt through the app.
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