→ Split rent and bills proportionally by income.
Divide household bills by your actual income ratios. Set custom 60/40 or 70/30 splits to keep cohabitation financially fair and conflict-free. No signup required. Completely free.
App Screens
Any of these sound familiar?
Don't let tedious money calculations ruin a great memory.
We make different amounts, so splitting everything 50/50 feels a bit unfair...
You can easily set custom ratios like '0.6 for the higher earner, 0.4 for the other'. The app automatically calculates each person's fair share based on your actual income breakdown.
Switching to a new ratio when someone takes a pay cut is an awkward conversation.
Modifying the ratio applies instantly to calculation balances. Propose a specific split like '70/30' with numbers backing it up, making emotional conversations purely logistical.
Adding up rent, utilities, and every grocery receipt is exhausting.
Just log payments as they happen on your phone. At the end of the month, one button calculates all netted differences and shows the exact final balance to transfer.
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
For cohabiting couples and dual-income households, 'splitting everything 50/50 when one person earns significantly more' is one of the most common sources of financial friction. Yet bringing up a concrete money-allocation conversation is emotionally charged and easy to avoid. FAMI-KAN lets you set a custom income-based ratio — such as 60/40 or 70/30 — as each person's burden weight. Then, as you log day-to-day payments for rent, utilities, groceries, and household supplies on your phone, the app tracks every reimbursement automatically. At the end of the month, one tap calculates the net difference after offsetting all advances, showing exactly who owes whom and how much to transfer. By turning a potentially emotional negotiation into a clear, numbers-driven routine, FAMI-KAN helps couples discuss money smartly and transparently — preventing unnecessary conflicts before they start. No sign-up, no app install, completely free.
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.