T-Mobile Card Check iOS Posted on 04.09.2014 by Darrarski Sep 04 The Card Check app offers a quick and easy overview of all sales of your MyWallet Card, your MyWallet stickers or your card online. I was one of the developers responsible for implementing the application. Related PostsRxKeyboard – Reactive Keyboard in iOSiPhone 7: Computer from the FutureAn Introduction to the UserNotifications Framework21 Amazing Open Source iOS Apps Written in Swift15 Days of Animations in Swift Share:FacebookTwitterEmail