Splitwise

The tool lets users record any shared cost, assign it to a group of friends, roommates, or family members, and specify how the amount should be divided—equally, by percentage, or by custom shares. Each entry updates a running balance that shows who owes whom, and the system can simplify multiple debts into a minimal set of transactions. Users can add expenses on the go, categorize them, and view totals, charts, and graphs of their spending.

It supports recurring items, offline entry, and cloud synchronization across iPhone, Android, and web platforms, allowing participants to stay up‑to‑date from any device. Payments can be recorded when settled, and the app handles multiple currencies and receipt scanning for added detail. A free tier provides core functionality, while an optional paid tier adds features such as advanced analytics and additional integrations.

The service is aimed at anyone who needs to keep transparent records of shared bills—travel groups, housemates, couples, or larger circles—reducing the friction of manual calculations and helping prevent disputes over money. It is stable and available in numerous languages, with unlimited expense storage and search capabilities.