Privacy Policy

Chromatic Tuner — Last updated: June 14, 2026

1. Overview

Chromatic Tuner ("the App") is a free Android instrument tuner developed by 강건한건강 ("we", "us"). This Privacy Policy explains how we handle information when you use the App.

2. Microphone Use

The App uses your device's microphone to listen to your instrument and detect its pitch in real time. The audio is processed entirely on your device to estimate the played note and frequency. The App does not record, store, or transmit any audio. No sound captured by the microphone ever leaves your device.

3. Information We Collect

The App does not collect, store, or transmit any personal information to our servers. It has no user accounts and no server-side communication other than loading advertisements (see Section 4).

4. Third-Party Services

The App uses the following third-party service:

• Google AdMob — for displaying advertisements. The App shows a banner, a full-screen ad at natural breaks, and an app-open ad on launch. AdMob may collect device identifiers (such as Advertising ID) and usage data to serve personalized or non-personalized ads. For more information, see the Google Privacy Policy.

5. Permissions

The App requests microphone access (to hear your instrument for tuning) and internet access (to load ads). The App does not use or request access to your location, contacts, camera, or files.

6. Data Storage

The App does not create user accounts and does not sync any data to the cloud. Uninstalling the App removes any cached AdMob data stored on the device.

7. Children's Privacy

The App is suitable for general audiences and is not directed at children under the age of 13. We do not knowingly collect personal information from children.

8. Changes to This Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated revision date.

9. Contact Us

If you have any questions about this Privacy Policy, please contact us at: [email protected]