AI tracks every group expense, handles tricky splits (couples, opt-outs, drinkers vs non-drinkers), and settles everyone with minimum transactions. No spreadsheets. No arguments. No 'you still owe me.'
Alex paid for dinner, Sam got the Uber, Jordan covered the tickets — by Day 3 nobody knows who owes what.
Without a running balance, the generous friend keeps covering and the quiet resentment builds silently.
You had water and a salad. They had steak and 4 margaritas. Equal split = you subsidized their night.
Alex owes Sam, Sam owes Jordan, Jordan owes Alex — the circular debt takes weeks to untangle and someone always gets forgotten.