🔒 Privacy Policy

1. Information We Collect

None.

Mutter does not collect any personal information, voice recordings, usage data, analytics, telemetry, or any other information from you or your device.

2. How We Use Information

Since we don't collect any information, we don't use, process, analyze, or share any data whatsoever.

3. Data Storage

All data created by Mutter is stored exclusively on your device:

• App settings (language, overlay position, haptic preferences) — saved in Android SharedPreferences, local only
• Speech recognition model files — downloaded once and stored in your device's private app storage (filesDir/models/core/)
• Voice recordings — captured in memory only, transcribed immediately, then discarded; never written to disk

No data is ever uploaded to our servers or any third-party service.

4. Data Sharing

None.

We do not share, sell, rent, or trade any information with third parties. There is no information to share.

5. Third-Party Services

Mutter contacts the internet in exactly one scenario:

No third-party analytics, crash reporting, advertising SDKs, or tracking libraries are included in Mutter.

6. Microphone Usage

Mutter requests the RECORD_AUDIO permission to capture your speech. Here is exactly what happens to your audio:

• Recording starts only while you hold the mic button
• Audio is captured in device memory (never written to a file)
• The audio is passed directly to the on-device speech recognition model for transcription
• The transcribed text is inserted into the focused app
• The audio buffer is discarded immediately after transcription
• No audio is ever transmitted over the network

7. Accessibility Service

Mutter uses Android's Accessibility API to:

• Detect when you tap an editable text field (to show the mic button)
• Insert transcribed text into the focused field after you speak
• Automatically skip password fields (TYPE_TEXT_VARIATION_PASSWORD and related variants)

Mutter does not log keystrokes, read the content of text fields, capture screen content, or use the Accessibility API for any purpose other than showing the overlay and inserting text.

8. Internet Connectivity

Internet access is only required once — to download the speech recognition model on first setup. After that, Mutter operates entirely offline. You can revoke internet permission after the model download without affecting any functionality.

9. Children's Privacy

Mutter does not collect any data from any user, regardless of age. The app is suitable for all ages. We do not knowingly collect personal information from children under 13.

10. Data Security

The most secure data is data that is never collected. Since Mutter processes everything locally and never transmits any data, there is nothing to secure on our end. Your voice recordings exist only in your device's RAM for the duration of transcription and are then discarded.

11. Your Rights and Control

You have full control over all data associated with Mutter:

• Revoke microphone access — Android Settings → Apps → Mutter → Permissions
• Disable the Accessibility Service — Android Settings → Accessibility → Mutter
• Delete all app data — Android Settings → Apps → Mutter → Clear Data (removes model files and settings)
• Uninstall — removes everything; no accounts to close, no server-side data to request deletion of

12. Changes to This Privacy Policy

We may update this Privacy Policy occasionally. Changes will be reflected in the "Last Updated" date at the top of this page. We encourage you to review this policy periodically. Continued use of the app after changes constitutes acceptance of the updated policy.

13. Contact Us

If you have any questions about this Privacy Policy, please contact us at: