When you go to the Funds screen you can view your available balance and potential balance for all your wallets. (SPORTS, BTC, USD, and ICX). Initially, your wallet with the highest balance will be displayed first. If you want to see your available balance and potential balance for your other wallets you will need to tap on the wallet to switch your view to a different wallet.
Once you are on the Wallet Switch screen, you can also view the available balance of all your wallets at the same time.
On the Bet app, you can view your potential balance tap on the "View Potential Balance from Bets Outstanding" link at the bottom of the wallet.
After you tap on the "View Potential Balance from Bets Outstanding" link. A pop-up will appear that will give you the information on your bets outstanding, potential winnings, and total potential balance for that wallet.
On the Play app, the Funds screen looks slightly different but managing your currency wallets will be the same. For example, it doesn't have the Exchange menu option because the Exchange is actually its own navigation bar item at the bottom.