Last updated July 13, 2026
Privacy
Your microphone stays on your device
When you press Start tuning and grant permission, your browser supplies short audio sample frames to the pitch detector running on this page. We do not record, retain, or upload those samples.
No account or tracking SDK
The first release has no account, advertising tracker, analytics SDK, or tracking cookie. Tuning progress exists only in page memory and disappears when you close or reload the page.
Infrastructure data
Cloudflare may process ordinary request data such as IP address, user agent, requested URL, and security signals to deliver and protect the site under its own service policies.
Your choice
Microphone access is optional. You can deny it and use every reference-tone button instead, or revoke access at any time in your browser's site settings.