- Kartice app is a small app to manage your loyalty cards. It uses camera to pickup automatically pick up the barcode and the type of barcode. It stores the number, type of barcode and a name to core data, and then shows it in a tableview. When you select a row from table (aka a card), the app generates the barcode for you. You can even set the favorite card so it will show up as a widget. Using 3D touch you can quickly access the add new card screen.