QR Droid - QR Droid Zapper
RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
ZXing - Barcode Scanner for Android
Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything
UpCode - UpCode is a highly developed mobile access & interaction MAI technology that turns mobile...
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.