Split the Bill

Split shared expenses among friends and settle up with the fewest payments. Tags: money, friends, travel

Problem

Group trips and shared houses end with a messy chat of who paid for what. People want one list and a clear answer to who owes whom.

Must-have features

• Create a group and add people by name
• Log an expense: who paid, amount, who it was for (even or custom split)
• Running balance per person
• Settle up shows the minimum set of payments

Nice-to-have

• Multiple currencies with a manual rate
• Copy a summary as text to paste in a group chat

User flows

1. Create "Lisbon trip" and add 4 names
2. Add "Dinner €84, paid by Ana, split 4 ways"
3. Tap Settle up and see "Ben pays Ana €21"

Data

Groups (name, people) and expenses (amount, payer, participants, split, note, date), stored on the device.

Look and feel

One screen: balances at the top, expense list below, a large add button. Friendly rather than finance-like.

Platform

Web · works offline

Acceptance checks

• Adding an expense updates every affected balance
• Settle up never suggests more payments than people minus one
• Deleting an expense restores balances exactly

Known limitations

No bank links or real payments. One device per group.