Cash App provides Cash App Card, a prepaid Visa debit card to its users in association with Sutton Bank. Since it is a prepaid debit card linked to your Cash App account, you need to add money to your Cash App Card before you can use it anywhere. Don’t worry, there are different ways you can follow to add money to your Cash App card. Cash App also ties up with top US stores to add money to your Cash App Card. Walmart is the largest groceries retail chain across the US. This guide will let you know how to add money to Cash App card at Walmart.