Your sound stays yours.

Forever Tuner does not ask for an account. The iOS app does not collect personal information, track you, show ads, or include analytics or third-party SDKs.

When you tap Start listening, microphone audio is analysed on your device to show pitch. It is not recorded, stored, or sent to us. The microphone stops when you stop listening or leave Listen mode. Reference tones are generated locally. Your selected reference note and octave are saved on your device.

The website’s tuner runs in your browser. Microphone audio is analysed locally and is not sent to a server. Firebase Hosting may process routine request data to deliver the site; Google handles that data under its own policies.

If you email Jake, your email address and message are used to reply to you. For privacy questions, contact jakeheading@duck.com.

Last updated 24 September 2026.