How BananaSplit handles your data
The short version: we keep what's needed to split bills, show it only to the people it concerns, and never sell it.
What we store
- Your account: email address, password (stored hashed), display name, and profile photo if you add one.
- Groups you create or join: the group name, cover photo, and invite code.
- Group expenses and settle-ups: descriptions, amounts, who paid, how each was split, and a history of who added, edited, or deleted what.
- Your personal tracker entries: amounts, categories, notes, and dates.
- Your preferences, such as theme and default split method.
Who can see it
- Your email is visible only to you. Other people see your display name and photo.
- Everyone in a group sees that group's expenses, balances, and history — including everything added before they joined. Anyone holding a group's invite link can join it, so share links with care.
- Personal tracker entries are visible only to you.
- Expense descriptions are free text and visible to the whole group — keep sensitive details out of them.
Where it lives
Data is stored with Convex (our database provider) and the app is served by Vercel. Their servers may be in a different country from you. BananaSplit doesn't move money — “settle up” only records that a payment happened.
Your browser keeps a sign-in session, your theme choice (so the page doesn't flash on load), and whether you dismissed the install prompt. There are no ad or analytics trackers.
How long we keep it
Until you ask us to delete it. Personal entries you delete are removed immediately. Deleted group expenses are hidden from everyone but kept, so the group's balance history still adds up.
Your choices
- Change your name or remove your photo any time from your Profile.
- Edit or delete your personal entries, and edit or delete group expenses.
- To have your account and data deleted, or to get a copy of it, contact the person who runs this BananaSplit site. Because group records are shared with other members, expenses you took part in may need to stay in that group's history so its balances still add up.