Looks great, but agree with most points made around how folks might be perceived using this (unless in a group of finance/accountant types).
Maybe a slight repositioning as something 'practical' that considers responsible folks consume at different rates - have it know who is in the group, who is 'in' for each round (as folks consume at different rates), then when final bill comes in, it will do a proportional split of final tab based on who is in each round, (also potentially relative drink pricing if different costs beer/mixed/wine), and tipping suggestion for each based on a value you set (18% / 20% / ??). Then app is more friendly to the group, and benefit is you don't overpay/overtip individually or as a group when maybe not thinking clearly when you settle.
You could even add a game element on who's paying the round, or based on random, ongoing bets, ??
Maybe a slight repositioning as something 'practical' that considers responsible folks consume at different rates - have it know who is in the group, who is 'in' for each round (as folks consume at different rates), then when final bill comes in, it will do a proportional split of final tab based on who is in each round, (also potentially relative drink pricing if different costs beer/mixed/wine), and tipping suggestion for each based on a value you set (18% / 20% / ??). Then app is more friendly to the group, and benefit is you don't overpay/overtip individually or as a group when maybe not thinking clearly when you settle.
You could even add a game element on who's paying the round, or based on random, ongoing bets, ??