Violearn

Privacy Policy — last updated July 14, 2026

Violearn ("the app") is an independently developed app ("we", "the developer"). This policy explains what information the app handles and how.

Information we collect

We do not collect any personal information ourselves. Violearn has no accounts, no sign-in, and no servers of our own. Your practice history (scores, streaks, per-note accuracy) is stored only on your device and is never transmitted.

Microphone

The Tuner feature uses your device's microphone to detect the pitch of the note you are playing. Audio is analyzed in real time on your device only. It is never recorded, stored, or transmitted anywhere.

Advertising

Violearn shows banner ads served by Google AdMob. We show non-personalized ads and do not use Apple's App Tracking Transparency framework to track you across apps. To serve and measure ads and to prevent fraud, Google may collect certain data from your device, such as a device identifier, coarse general location derived from IP address, and ad interaction data (e.g., which ads were shown). This data is not linked to your identity by us.

For details on how Google uses this data, see How Google uses information from sites or apps that use our services and the Google Privacy Policy.

Diagnostics

Aggregated, anonymous crash and performance data may be collected by the Google Mobile Ads SDK to keep the app and ads functioning correctly.

Children

Violearn does not knowingly collect personal information from anyone, including children. Ads are always served in non-personalized mode.

Data deletion

All app data (practice history and settings) lives on your device. Deleting the app deletes all of it.

Changes to this policy

If this policy changes, the updated version will be posted at this address with a new "last updated" date.