The microphone is requested only when you tap start.
Privacy
Microphone and privacy
The microphone is only used after you allow it, and only to react to the noise in the room.
All sound analysis runs in your browser. No audio is recorded, stored or sent to a server.
The “shhh” and white noise are generated on the device. Nothing is downloaded.
We use Google Analytics to count visits and pages viewed. It never receives audio.
Your settings (sensitivity and reaction time) are saved only in this browser.