Mäuse

Split expenses with your partner, effortlessly.

Log an expense Enter the amount and a short description

Choose how to split By percentage or a fixed amount

Track monthly totals See what your partner owes at a glance

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"Mäuse" is German slang for money — literally "mice"

Preview mode — data won't persist. Install as an app for full functionality.

A new version is ready.

March 2026

Total 0.00 €

Partner's share 0.00 €

Settings

Data

Backup & Restore

Export your expenses to a JSON backup or import one on another device.

Import replaces the expenses stored on this device after confirmation.

Voice

Voice Mode

Enable a record-then-process voice sheet that turns one spoken expense into a reviewed draft.

OpenAI API Key Enable voice mode Shows the mic button and allows record-then-process voice capture.

Voice mode is online-only and needs access to OpenAI gpt-4o-transcribe and gpt-5.4. Your API key stays on this device, is excluded from backups, and is only used for OpenAI voice requests.