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Privacy Policy — Pitch Coach

Effective date: 2026-10-08

About this app

GF43 provides Pitch Coach as an offline pitch-practice app. It has no account, login, advertising, subscription, analytics service or cloud audio analysis.

Microphone and audio

Microphone access is used when you start pitch checking or a singing take. Audio is processed on your device to estimate pitch and provide practice feedback. Android capture creates temporary WAV audio files in the app-private cache for local analysis. These files are not uploaded or included in practice history. This version does not promise immediate deletion after every take; cached audio may remain until you clear the app cache or data, or uninstall the app. Reference-tone playback can also create temporary generated audio files.

Local practice data

Pitch Coach stores difficulty, language, an optional practice range, introductory-screen preference and training summaries on your device. The practice range contains low/high note names, saved only after you confirm them, and is used to select reference tones. Summaries include practice dates, scores, reference notes and note-level results, not audio recordings. The app keeps up to 100 session summaries, plus lifetime session/day counts and best scores per difficulty. These totals can remain after older summaries are removed. There are no individual user profiles; people sharing a device share its settings and history. Unreadable local data may be preserved separately so that a later save does not silently destroy it.

Collection and sharing

Pitch Coach does not send microphone audio, pitch results, training history or settings to GF43 or third-party servers. There is no advertising or analytics SDK configured in this version. Core practice works without an internet connection. Opening external email or web links is handled by your chosen app or browser under its own privacy policy.

Retention and deletion

Use Settings > Clear history to remove saved training summaries, lifetime practice totals and separately preserved unreadable history. This does not clear preferences, temporary audio caches or separately preserved unreadable settings. Android Settings > Apps > Pitch Coach > Storage lets you clear the cache or all app data. Uninstalling removes the app-local data. Pitch Coach disables Android app backup for this release and does not provide cloud sync.

Your choices

You can deny or revoke microphone permission in Android settings. Listening and singing features require that permission; reference playback and viewing local history do not. The app provides pitch-practice feedback, not medical assessment or treatment.

Children and policy updates

The app does not intentionally send personal data about children or other users to a server. The developer must declare the intended age audience in Google Play. If data practices change, this policy and the Google Play Data safety declaration will be updated before the affected release.

Contact

For privacy or support questions, contact GF43 at gf-43@googlegroups.com. If you email us, your email address and the information you choose to include are handled by the email service to answer your request. Do not include audio or sensitive information unless necessary. Support correspondence is separate from the app's local pitch processing.