Rent, bills and chores for a shared house, in one place.
Put the record where the whole group can see it, instead of in one person's head, notes app, or spreadsheet. When everyone watches the same list update in real time, who chipped in, what's there, what went out, tracking stops being a job and reminding stops being personal.
Whoever tracks the money inherits two jobs nobody wants: bookkeeper and enforcer. They maintain the list, in their head, their notes app, a spreadsheet nobody else opens, and then they have to act on it, sending the reminder texts that make them feel like a debt collector among friends. The list is private, so every reminder is personal. That's the design flaw.
Tracking who paid is half the picture, the other half is what the money did. A spreadsheet can list who sent $50; it can't show what happened after. On the table, money out is tracked the same way money in is: someone requests it, the organizer approves it, the recipient confirms they got it, and the whole group sees each step. The record isn't a snapshot someone maintains, it's the actual history of the money, written as it happens.
That's the core of what TableCash is: a group fund with one person in charge and a record everyone can see. The money moves to the organizer; the app is the shared receipt. Start with the situation that brought you here: collecting from friends, team dues, or a group gift.