Private trip ledger
Shared costs.
Clean settlements.
Splitter is a private trip ledger for friends, families, and guests. Add expenses, split them fairly across currencies, and resolve balances with fewer transfers.
No bank connection required. Add guests without requiring them to sign up.

- Multi-currency, locked-in FX
- Guests supported
- Families & sub-groups
- PWA on mobile & desktop
Group trips are never just “split equally”.
Someone pays by card, someone else pays cash, a couple shares one room, a guest joins halfway through the trip, and some costs should roll into the next one. Splitter is built for those real-world cases.
- Multiple people can pay the same expense
- Costs can split by exact amount, percentage, shares, or manually
- Families and sub-groups settle internally
- Guests can participate without creating accounts
- Historical FX stays fixed once an expense is entered
- Trip balances can roll into the next trip
Designed for real trip bookkeeping
Multiple payers
Record one expense with more than one payer, useful for mixed card and cash payments.
Four flexible split modes
Split equally, by exact amount, by percentage, or by weighted shares.
Families and sub-groups
Group members into families or couples so internal balances stay clean automatically.
Multi-currency
Choose any currency per expense. Rates are snapshotted at entry so historical balances never drift.
Guests
Add people without accounts. They participate immediately and can claim their spot later.
Resolve balances
Log partial or full payments at any time during the trip.
Debt simplification
Reduce the group's debts to a minimal set of transfers.
Activity feed
Every change to a trip is traceable in a clear audit trail.
Receipt photos
Attach receipt images to expenses when the group needs context.
Trip rollover
When one trip ends, carry unsettled balances into the next trip as opening balances.
Verified ledger
Independent app and database checks validate totals, participants, FX snapshots, and balances before a trip finishes.
Trip story and statistics
Finish with a clear recap of spending, categories, currencies, dates, and settlement status.
From first expense to final settlement
Create a trip
Set a name, base currency, and member list.
Invite people
Share a link or add guests directly.
Add expenses
Log who paid, the category, and how to split.
Review balances
Switch between family and individual views.
Verify and finish
Check the ledger, then stop accepting new expenses.
Settle or carry
Record payments or carry balances into the next trip.
Made to feel clear, not cluttered
The same fictional trip in both themes, with multiple payers, guests, payments, and snapshotted currencies.


Small details that make group trips easier
Beyond the core ledger, Splitter handles the edge cases that trip apps usually miss.
- Join trips via invite link
- Email/password or passkey sign-in
- Installable PWA on phone or desktop
- Search across expenses and payments
- Explain any balance transaction by transaction
- Push notifications
- Replace a guest with a real account
- CSV and JSON exports
Private by design
Splitter is a secure web app for trip expenses. Every user only sees the trips they belong to, and the app does not move or hold your money.
- Private trip access with trip-level permissions
- No bank connection required
- Clear activity history
- Independent ledger verification
- Secure auth with email/password or passkeys
- Guests supported without full sign-up