Scan the barcode
Tap the plus button on the home screen and choose Scan. Point the camera at the barcode on the back of your card. ShowCards recognizes the code and its format automatically, so there is nothing to pick from a list.
Hold the card flat and let the barcode fill the frame. Detection normally takes under a second.
Name and save
Give the card a name (the store name works best), pick a color or a logo suggestion, and tap Save. The card appears as a tile on your home screen, ready to show.