🚀 Powered by Cloudflare Edge & KV

Split bills, share dinners. Without friction.

ZahlMas (German slang for "Pay up!") lets a group of friends split complex restaurant receipts in seconds. Join a session with a simple room code, scan the bill with laser OCR, split items on multiple phones simultaneously, and clear debts optimally.

🚀 Open Free App (No Signup)

ZahlMas

Syncing: SUSHI9

🍣 Spicy Tuna Roll 18.00 €

🙋‍♀️ Alice (9.00€) 🙋‍♂️ Bob (9.00€)

🍺 Sapporo Draft Beer 6.00 €

Claimed by Bob (100%)

OPTIMIZED TRANSFERS

🙋‍♂️ Bob ➔ 🙋‍♀️ Alice 15.00 €

🙋‍♂️

NEXT ROUND PAYER

Bob owes the most!

Engineered for Seamless Splits

Loaded with robust utilities built natively on modern web APIs.

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Laser OCR scanning

Take a picture or upload any receipt file. Our client-side analyzer processes items, quantities, and prices instantly.

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Real-time Syncing

No account, no email verification. Type in a 6-digit room code and instantly edit itemizations with multiple friends together.

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Simplified Settlements

Our greedy clearing matching algorithm resolves debts into the minimum possible transactions. Skip endless tiny transfers.

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Est. Calorie counts

Fulfill curiosity! Our built-in calorie estimator analyses food names and awards the group funny dinner badges.

Frequently Asked Questions

Have questions? We have answers.

Is ZahlMas free to use? +

Yes! ZahlMas is 100% free, runs without ads, and does not require you to sign in, verify emails, or download a heavy app store package. You can launch it in a browser and split immediately.

How does the collaborative multi-device sync work? +

When you click "Start Collaborative Group", the app generates a unique 6-digit room code (like BK8W29). Your friends type that code in on their phones. All devices connect via Cloudflare serverless Workers to a secure Cloudflare KV store, updating and downloading splits in real-time.

Is my data private? +

Absolutely. We do not track you, sell analytics, or read personal information. Active sessions are stored using temporary, randomized room identifiers. Once you confirm "Settle Up", the data remains local in your browser and room codes are fully private.

Does it work on iPhones and Android? +

Yes, ZahlMas is designed from the ground up as a responsive, mobile-first utility app. It works perfectly on Safari, Chrome, Firefox, and mobile web views with native-like touch gestures.