→ Split group trip expenses by custom family ratios instantly.
Adjust rates for kids of different ages and split hotel or dining bills dynamically among multiple families. Ensure everyone pays their fair share with custom adult/child ratios. No signup required. Completely free.
App Screens
Any of these sound familiar?
Don't let tedious money calculations ruin a great memory.
Family A fronted the hotel, Family B paid for dinner... who owes who?
Just share the link and everyone enters what they paid. If you set ratios like 'Adult 1.0, Child 0.5, Infant 0', the system calculates the exact balance instantly, whether you're 4 or 40 people.
Why am I paying a full adult share for my toddler's meal?
You can freely adjust the 'burden ratio' for each participant. Baby eats for 0, toddler for 0.3, dad for 1.0—fair amounts are automatically calculated based on your family's reality.
The group chat turns into a stressful accounting thread for a week...
Once everyone logs their payments, one tap shows exactly 'Who sends what to whom'. Share the final receipt link and settle up instantly. No more awkward math text chains.
How FAMI-KAN Compares
| Spreadsheets / Manual | With FAMI-KAN | |
|---|---|---|
| Splitting adults & kids | Difficult & awkward | Automatic by custom ratio |
| Tracking multiple receipts | Easily lost or confusing | Shared ledger link (Real-time) |
| Settling debts | Countless micro-transfers | Optimized 1-tap transfer route |
Simple 3-Step Guide
No app downloads or accounts needed.
Create & Set Ratios
Create an event instantly. Set weighted ratios for adults, kids, or specific members.
Enter Expenses
Share the URL. Everyone can enter their out-of-pocket expenses or deposit pool contributions.
Settle Instantly
The system auto-calculates the net settlement, minimizing the number of transactions.
Why FAMI-KAN is Best
The trickiest part of splitting expenses on a multi-family vacation or group camping trip is when the number of adults and children's ages vary wildly between families. Adults drink alcohol and enjoy full-course meals while toddlers barely eat anything — yet splitting the bill evenly creates a real sense of unfairness. With FAMI-KAN, you can set a different burden ratio for every participant (e.g. Adult 1.0, School-age child 0.5, Infant 0), and the app automatically factors in every advance payment and reimbursement across accommodation, meals, and activities to calculate the simplest possible settlement — who should send how much to whom — in a single tap. No spreadsheets, no calculators, no group-chat arguments. FAMI-KAN also supports deposits (pre-collected funds), so you can combine upfront contributions with post-trip settlements seamlessly. Whether your group is 4 people or 40, fair and transparent expense splitting is just one shared URL away.
Why we built FAMI-KAN
At the end of a fun trip, the worst part is figuring out who owes what. Pulling out receipts, calculating, and remembering who paid for what brings a cold, administrative feel to great memories.
Existing split-bill apps are useful, but often too complex or force everyone to download an app. We wanted something simpler and more welcoming.
FAMI-KAN is not just a calculator. By letting the system handle the math, you can focus on the fun conversations and memories. It's a partner that preserves the joyful afterglow of your events.
Frequently Asked Questions
Yes, all features are 100% free forever. No registration required, and no hidden premium plans.
No. It runs entirely in your web browser. Just share the link and everyone can access it immediately on their phones.
Yes, you can select the currency when creating an event (supports 36 currencies). You can unify calculations easily for trips abroad.