Trimtab: Split Shared Costs
Trips, boats, planes, flats
Free · Designed for iPad. Not verified for macOS.
Trimtab keeps track of money that several people spend together — a sailing week with friends, a shared flat, or a boat or aircraft owned in partnership.
Log who paid what. Trimtab works out who owes whom, and the shortest set of payments that settles everyone up.
EQUAL — OR BY OWNERSHIP SHARE
Split a restaurant bill evenly between the people who were there. Or divide a berth fee, an insurance premium or an annual inspection by ownership: a 50% owner pays half, a 12.5% owner pays an eighth. Shares are renormalised inside each expense, so a cost carried by only two of four co-owners still lands in the right proportion.
EXACT TO THE CENT
Every division is calculated in whole cents, leftover remainders included. Balances always add up to exactly zero — no drifting rounding errors, no cent that belongs to nobody.
HISTORY THAT STAYS TRUE
Each expense remembers the people and the shares it was created with. Adding someone to the group next month never rewrites what already happened.
SHARED LISTS
Send a link to the people you travel or co-own with. They open the same list on their phone, and every expense anyone adds shows up for everyone else. No account needed on either side — the link is the invitation.
PRIVATE BY DEFAULT
No sign-up, no advertising, no tracking, no analytics. A group stays on your device unless you choose to share it.
ALSO
• Its own currency for each group — 12 to pick from
• Settle up with the fewest transfers possible
• Send the final summary to any chat as plain text
• English, German, Spanish, French, Croatian, Italian and Russian
Free. No subscription, no in-app purchases.
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new design
The developer, Nikita Pushkar, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Nikita Pushkar
- Size
- 1.6 MB
- Category
- Finance
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 6 more
- English, Croatian, French, German, Italian, Russian, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Nikita Pushkar