CardsScanner is a simple utility app to scan the front and backside of trading cards and combine them into single pictures convenient to be uploaded to an online market place. The app uses Apples VisionKit framework to auto-detect card borders and to remove distortions from inclined camera angles. For best results it helps to place the cards in the middle of a white or black rectangle with slightly larger dimensions than the card, see preview above. In this way the edges of the card always remain fully visible.