Privacy policy

Effective 27 September 2026 · applies to the iOS and Android apps

Microphone

The app asks for microphone access so it can tell you whether you are singing in tune. The microphone is used only while you have started Listen, Sing or a similar exercise. Sound from the microphone is analysed in short pieces in the device’s memory to estimate pitch and is then discarded. No audio is sent anywhere. You can turn off microphone access in your phone’s settings; the lessons, tanpura, ear training and raga explorer still work without it.

Hear yourself (optional, off by default)

If you turn on Settings › Hear yourself, the app keeps the audio of each finished lesson attempt in a file on your device so you can play it back, from the attempt’s review or from Settings › My recordings. Each recording is listed with its lesson, date, length and score. The latest 30 attempts are kept for up to 30 days and older ones are deleted automatically; a recording you save is kept until you delete it. You can delete any recording, or all of them, from My recordings; uninstalling the app deletes them too. Recordings are never uploaded or shared, and are left out of iCloud and Google device backups. Turn the setting off at any time; nothing new is recorded while it is off.

Information stored on your device

To show progress, streaks and your daily session, the app saves on your device:

• practice results, such as which exercise you sang, the date and time, and per-note pitch measurements (for example “12 cents flat”) and scores;
• your settings, such as Sa, tempo, sounds, appearance and an optional display name.

This information is not sent to the developer or to anyone else. It is removed when you use Progress › Manage practice data › Delete all training data or uninstall the app. Copy JSON export creates a backup only when you ask for it, and places it on your clipboard for you to save wherever you choose.

Information we collect

None. The app has no servers, no sign-in, no advertising or analytics software, and no third-party services that collect personal data. Apple and Google may collect information under their own policies when you download apps from their stores.

Purchases

The beta has no purchases. If paid lessons are offered later, payments will be handled entirely by the App Store or Google Play; the app will only receive confirmation of what you have unlocked, and this policy will be updated before then.

Children

The app is a music practice tool for a general audience and does not collect personal information from anyone, including children.

Changes

If this policy changes, the new version will be posted on this page with a new effective date.