The way it looks is that it is connected to your cellphone via bluetooth or something of that sort (since it notifies you when it is out of range from your card

The way it looks is that it is connected to your cellphone via bluetooth or something of that sort (since it notifies you when it is out of range from your card). An easy solution would be for the card to auto wipe when disconnected from your phone, then re-download all the cards from the app when you reconnect. Problem solved!