Learn what you need to know to add money to your Cash App credit card from the remainder of this blog. Is it your first time using Cash App? It's free to use, and you can add cash to your Cash App credit card or debit card.If you have a Cash App debit card, our knowledgeable customer service representative will explain how to add money to it.The best way to add money to your Cash App account is to use your credit or debit card. You can also add the cash to your Cash App account using your bank account.And How do I add money to my Cash App account using a credit card or debit card? However, you should know that you can add your Cash App account using a credit card or debit card.