FAMI-KAN(ファミカン)

Tired of Roommate Bill Arguments? — Auto-Balance Rent and UtilitiesLiving together is great.
Arguing over the Wi-Fi bill isn't.

FAMI-KAN is a free browser tool that tracks rent, utilities, and grocery costs for roommates. No sign-up required. Set custom ratios by room size or usage.

No more passive-aggressive fridge notes.No registration, 100% free

Any of these sound familiar?

Don't let tedious money calculations ruin a great memory.

Q.

My room is way smaller, but I'm paying half the rent?

A.

With FAMI-KAN, you can set custom ratios. If Jason has the master bedroom, set his ratio to 1.5. Rent will automatically split proportionally!

Q.

We buy shared groceries but I don't eat meat.

A.

No problem. Enter the receipt, then deduct the cost of the steak from your portion. FAMI-KAN adjusts the final payout dynamically.

Q.

Splitwise has too many paywalls and limits now.

A.

FAMI-KAN is 100% open, free, and doesn't hide core features (like advanced algorithms) behind a premium subscription.

How FAMI-KAN Compares

Spreadsheets / ManualWith 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

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.