Cash App is one of the best marketing platforms in the US which provides online banking solutions to the people in the US. Like all the traditional banks, Cash App also provides Cash App cards to all the users. Once you receive your cash app card, activate it and now it is time to load money to your card. You may wonder how to add money to a cash app card in store.. Open the cash app barcode and go to the checkpoint assigned by Cash App to load money from the cashier. If you are unable to add money to your card in store then contact Cash App Customer Services.