How To Activate Cash App Card by scanning QR Code?(2022 Guide) The Cash App Card is basically a prepaid debit card, which means it's not linked to your other bank accounts — unless you link them specifically for quick access. The QR method is probably the most popular as it is automated and does not require access to a debit card. You can activate the Cash App card by scanning a QR code with a mobile device. You can find the QR code in the document that came with your card. Visit for more info: https://cashappscontact.com/blog/activate-cash-app-card