CardStar - Leave those bulky plastic “reward cards” and “club cards” at home!
QuickMark - QuickMark makes everything possible.
Loyalty Card Keychain - Saves all your loyalty cards on your phone
Barcode & QR Code Scanner - A free app which allow to read and generate barcodes for Android.
Reward Cards - Reward Cards is an app that offers a smart way to carry loyalty cards, create shopping lists, earn reward coins, and manage purchase receipts.
ZXing - Barcode Scanner for Android