Bill Splitter: Group Costs
Housemate bills, settle up IOU
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
One tab for the trip, the flat, or the night out. CashSplit tracks who paid what and shrinks it to the fewest payments that settle everyone up.
Split group expenses without the awkward maths. CashSplit keeps one clean tab per trip, flat, or night out — who paid, who shared it, and exactly who owes who — then shrinks the whole thing to the fewest payments that settle everyone up.
No accounts, no invites, no waiting for mates to install anything. You keep the ledger; everyone else just gets the final numbers. And because CashSplit does all of its arithmetic in exact integer cents, the balances always add up: apply the suggested payments and every single person lands on zero.
WHAT YOU GET
• One tab per event — the ski trip, the flat, Friday arvo — with people and expenses side by side and totals that update the moment you type
• A "who pays whom" plan with the fewest possible transfers: 30 expenses across 8 people collapse into a handful of payments that provably clear every balance
• Three ways to split any line — evenly, by exact amounts, or by percentages — with every last cent distributed, never lost to rounding
• A paid-versus-share card for each person, so "you still owe" is a fact on screen, not an argument at the table
• A shareable summary and CSV export: send the settle-up plan to the group chat and everyone sees the same numbers
• An optional reminder a few days later if money is still owed, so open tabs actually get closed
PERFECT FOR
• Trips where one person books the accommodation and someone else keeps shouting for dinner
• Housemates sharing rent, groceries, and the internet bill
• Couples keeping shared spending fair without opening a joint account
• Birthdays, ski weekends, festivals — any event where the group pays as it goes
WHY NOT JUST A NOTE OR A SPREADSHEET?
Because notes don't do maths and spreadsheets do it badly. Uneven splits, someone joining halfway through the trip, a person removed from an expense, rounding on odd amounts — this is exactly where DIY ledgers fall apart. CashSplit resolves all of it with exact arithmetic and shows you a settlement it can verify: after the listed payments, every balance is zero.
PRIVATE BY DEFAULT
Your ledger lives on your iPhone — no account, no sign-up, no server. Nothing about your group or your spending leaves the device; even the settle-up reminders are generated locally. Deleting a tab deletes it for real.
FULL ACCESS
CashSplit Full Access unlocks unlimited open tabs at once plus the exact-amount and percentage split modes. Choose a Weekly or Yearly auto-renewing subscription, or a one-time Lifetime purchase — every plan unlocks the same full version.
Open your first tab tonight: add the people at the table, type in what they paid, and watch the argument disappear.
Terms of Use: https://leanstudio.asia/terms-of-use
Privacy Policy: https://leanstudio.asia/privacy-policy
Support: support@leanstudio.asia
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First release of CashSplit.
Subscriptions
In-App Purchases
The developer, LEAN ASIA CO., LTD, 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
- LEAN ASIA CO., LTD
- Size
- 4.5 MB
- Category
- Finance
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 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
- Age Classification
4+
- 4+
- In-App Purchases
Yes
- Tip Calculator & Dinner Bills $79.99
- Trip Flatmate Shared Costs $39.99
- IOU Debt Settle Up Tracker $7.99
- Copyright
- © 2026 LEAN ASIA CO., LTD