Privacy Policy

App: Audio Classifier · Last updated: 1 July 2025

    Short version: Audio Classifier does not collect, record, store, or transmit your audio or any personal data. Everything stays on your device.
  

1. What this app does

Audio Classifier uses your device's microphone to feed a continuous audio stream into an on-device machine-learning model (YAMNet, provided by Google MediaPipe). The model classifies the audio and returns confidence scores for sound categories in real time.

2. Audio is never recorded

The raw audio stream is processed in memory and discarded immediately after each inference frame. It is never written to disk, never stored, and never transmitted to any server or third party.

3. What is stored locally

The only data persisted to your device is:

Classification labels and confidence scores (numbers, not audio)
Event timestamps derived from those scores
Session summaries and reports you choose to generate
Your preset configurations

All of this data is stored exclusively in your device's private app storage. It is never uploaded anywhere.

4. No cloud backup

Cloud backup and device-transfer backup are explicitly disabled. Your session data cannot leave your device through Android's backup system.

5. No third-party analytics or advertising

This app contains no analytics SDKs, advertising SDKs, crash reporters, or any other third-party code that transmits data off-device.

6. Permissions

RECORD_AUDIO — required by Android to access the microphone for ML inference. Audio is never recorded.
FOREGROUND_SERVICE / FOREGROUND_SERVICE_MICROPHONE — allows the ML model to keep running while the app is in the background.
POST_NOTIFICATIONS — used to show a persistent notification while background monitoring is active.
WRITE_EXTERNAL_STORAGE (Android 9 and below only) — used to export reports to your Downloads folder when you explicitly request an export.

7. Children's privacy

This app does not collect any personal information from anyone, including children under 13.

8. Changes to this policy

If this policy changes, the updated version will be posted at this URL with a revised date. Continued use of the app after a change constitutes acceptance of the new policy.

9. Contact

Questions or concerns? Email: bluer-splats9r@icloud.com