Settle UP is a group expense-splitting app for trips, roommates, and shared households, plus one-off IOUs between friends. Add an expense once and split it equally, by percentage, by shares, or item by item, and Settle UP keeps a running tally of who owes whom, in any currency. When it's time to settle up, share a pay-me link for Venmo, Cash App, PayPal, or Zelle, or record a payment and let the person who's owed confirm it. Groups can also track recurring subscriptions and household bills. Sign in with Google, Apple, email and password, a one-time magic link, or a passkey.