Cash App, launched by Block, Inc. (formerly Square) in 2013, is a mobile digital wallet with 57 million users that lets people send and receive money, spend with a customizable debit card, invest in stocks and bitcoin, and save with up to 3.25% interest. It's especially popular for peer-to-peer payments and has strong cultural ties to hip-hop.

Use Fluz to maximize rewards on funding your Cash App balance. Instead of loading money onto your Cash App Card with a bank transfer directly, buy a Fluz gift card for the amount you want to add and use it to top up your account, earning cashback on money you're already moving. Fluz stacks with other rewards programs, so you can layer this cashback on top of Cash App's own boosts and rewards. It's a simple way to add extra value to everyday peer-to-peer payments, with cashback credited straight to your Fluz wallet.