Privacy Policy

1. 100% On-Device Microphone Processing

Trumpet Master, Clarinet Master, and Harmonica Master (developed by Ponderbyte / Frédéric Valente) use your device's microphone exclusively for real-time pitch detection, tuning, and local practice recordings. Audio never leaves your device—nothing is uploaded to any cloud server.

2. Local Storage & Practice Progress

Your practice scores, streaks, unlocked achievements, and optional audio recordings are stored locally on your device. You can export or delete your recordings at any time from within the app.

3. Purchases & Crash Reporting

One-time Pro unlocks are processed securely through Google Play Billing. Anonymous crash diagnostics (via Firebase Crashlytics) and basic aggregate usage events help us fix device-specific audio issues.

4. Contact

For any questions or support requests regarding Diapason Lab or Ponderbyte apps, visit ponderbyte.com.