WalletPasses is an open-source app for Android phones that lets you use digital wallet passes on your device to make your life easier. You can check in for flights, get and redeem rewards, get in to movies, or redeem coupons. You can also store multiple digital wallet passes in one app for future use.

WalletPasses supports major digital wallet passes, including the Google Play Store gift card, Google Play Store gift card code, Apple Store credit card, Apple Store gift card code, and more. 

Aside from these, it also features an automatic pass update and notification system that you can customize, a search feature that displays results according to relevance - and is based on the Display of Passes,(Time, Location, iBeacon). It also features an embedded scanner.