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Mäuse Support

Need help with an expense, a backup, or Voice Mode? Start with the answers below or send an email.

Contact support

Email Michael Diestelberg at support@mäuse.app. Include your iOS version, Mäuse app version, and the steps that led to the problem. Never send an OpenAI API key or a backup containing private expense data.

Email Mäuse Support

Requirements

Frequently asked questions

Which voice mode should I choose?

Both turn speech into expense drafts you review before saving.

OpenAI · Cloud (recommended) understands several expenses and corrections in one go and is more accurate. Audio and expense context go to OpenAI. You need internet and your own API key.

Apple · On device is free, and everything stays on your iPhone. You say one expense at a time: speak, check, save. Needs an iPhone with Apple Intelligence on iOS 26 or later.

Where do I get an OpenAI API key?

You only need a key for OpenAI · Cloud. It comes from the OpenAI Platform; a ChatGPT subscription isn’t enough. Create an account at platform.openai.com, add billing credits, then create a secret key and paste it into Mäuse Settings.

Read the step-by-step guide →

Where are my expenses stored?

On your iPhone. Mäuse has no user accounts and no cloud database. Use Settings → Backup & Restore to create a portable JSON backup before changing devices or deleting the app.

How do I restore a backup?

Open Settings → Backup & Restore → Import Backup and choose a Mäuse JSON backup. Confirm carefully: importing replaces all expenses currently stored in the app.

Why is the microphone button missing?

The microphone appears after you enable Voice Mode in Settings. For OpenAI · Cloud, that means a verified API key and accepting the disclosure once. For Apple · On device, Apple Intelligence must be ready and the speech model downloaded.

Why isn’t Apple mode available on my iPhone?

Apple · On device needs iOS 26 or later, an iPhone that supports Apple Intelligence, Apple Intelligence turned on, and a downloaded speech model for English or German. Settings → Voice Mode shows what is missing and can download the speech model. Manual entry and OpenAI · Cloud remain available. Mäuse never switches you to OpenAI automatically.

Why was my OpenAI key rejected?

Check that the key is active, belongs to an OpenAI API project with access to the Realtime model used by Mäuse, and has billing or credits available. A ChatGPT subscription does not automatically include OpenAI API usage.

Who pays for Voice Mode?

Apple · On device is free.

OpenAI · Cloud uses your OpenAI API project. OpenAI may charge that project (about $1–2 per 100 dictated expenses). Mäuse is not affiliated with OpenAI and receives no part of those charges.

How do I stop sharing voice data?

End the active session, then turn Voice Mode off in Settings. Nothing is sent while Voice Mode is off. To withdraw your consent, delete your saved API key in Settings; Mäuse asks again before OpenAI mode is used next. You can also switch to Apple · On device, which never sends voice data off your iPhone, or revoke microphone permission in iOS Settings.

The app cannot access my microphone.

Open the iPhone Settings app, find Mäuse, and enable Microphone. If the switch is unavailable, check Screen Time or device-management restrictions.

The app cannot access Speech Recognition.

For Apple · On device, open iPhone Settings → Privacy & Security → Speech Recognition and allow Mäuse.

Can support recover deleted expenses?

No. Because the developer does not receive your expense database, deleted expenses can be recovered only from a backup you previously exported.

Security reports

Please report security concerns privately by email to support@mäuse.app.