We're not permitted to make speculative statements about the potential returns from using COIN, but the rewards are in the form of XYO, a type of ERC20 utility token used for the purpose of location verification and traded privately on cryptocurrency exchanges.
You can also trade COIN for Ethereum(ETC) tokens or Bitcoin(BTC). By holding crypto, you have the option of selling these tokens for USD or your preferred currency at a later date whenever you choose.
You can check your favorite ERC20 token exchange and see the current value of XYO or any of these tokens on that exchange if you like.
You can learn about how to earn, withdraw, and sell digital assets here: What can I do with Digital Assets Earned in COIN App?
You can also learn about the withdrawal process here: How to Withdraw