Guitar Tuner

01 What information is involved?

At a glance, what the app touches and where it ends up:

02 No account needed

Guitar Tuner has no accounts and no sign-in. You never enter an email or password, and the app does not collect personal information.

03 Microphone

Auto mode uses the microphone only while its screen is open, to detect the pitch of the instrument you are tuning. Audio is analyzed on this device in real time and is never recorded, saved or transmitted. The microphone is released when you leave the screen or the app goes to the background.

Manual mode plays reference tones generated on the device and does not use the microphone.

04 What we store

Preferences (theme, language and biometric unlock) are stored only on this device and are deleted when you uninstall the app.

05 Biometric unlock

You can optionally lock the app with Face ID, Touch ID or your fingerprint. Your operating system checks your biometrics; the app never sees or stores them and only remembers whether the lock is turned on.

06 Third-party services

The About section of the settings page loads the developer's profile photo from GitHub, and links such as Rate on Google Play open in your browser or store app. Those services may log your request (for example your IP address) under their own privacy policies.

The app does not include third-party analytics, tracking or advertising software, and we do not sell or share your personal information.

07 Changes to this policy

This policy may be updated as the app changes. The effective date at the top shows the latest revision, and continuing to use the app after changes means you accept the updated policy.

08 Summary