Barcode & QR Code Scanner - A free app which allow to read and generate barcodes for Android.
Wikibuy - Find lower prices at other sellers while you shop on Amazon
QR Droid - QR Droid Zapper
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.
QuickMark - QuickMark makes everything possible.
CouponFollow Cently - Coupons at Checkout is a browser plugin for Chrome, Firefox, Internet Explorer, and Safari that...