Track how much you buy in and cash out for and then be introduced to the other players for peer to peer settling after the game.
Log your buy-in and then go see the host to receive your chips.
When you're done, count any remaining chips, submit your number in the app, and then bring your chips to the host for confirmation. If you're out, no problem—your buy-ins are already recorded.
After the game, the host will text each player to connect them with who owes who. Settle up peer-to-peer, no guesswork.