Amigos

Amigos is a free group-trip expense splitter for iPhone and the web. One person creates a trip, shares an invite code or link, and everyone logs what they paid as they go - dinners, gas, the Airbnb, lift tickets. Expenses can be split evenly or by headcount (adults and kids), and at the end Amigos works out a short list of who pays whom to settle up, so nobody has to untangle a spreadsheet after the trip.

Built for bachelor and bachelorette weekends, family reunions, ski trips, and any trip where several people are fronting costs. No ads and no paywall. Sign-in is a one-tap email link, no password.