Privacy Policy

Last Updated: August 25, 2026

In Brief: ZGuitar Guitar Tuner Metronome respects your privacy. We do not collect, store, or share your personal information. All data processing is done locally on your device.

0. App & Developer Identification

This Privacy Policy applies to the mobile application ZGuitar Guitar Tuner Metronome (referred to as "ZGuitar" or the "App"), published and operated by Chongqing Xinqiu Intelligent Technology Co Ltd ("we", "us", or "our"), the developer and legal entity responsible for the App on the Google Play Store.

App name (as listed on Google Play): ZGuitar Guitar Tuner Metronome
Developer / Publisher: Chongqing Xinqiu Intelligent Technology Co Ltd
Legal entity: Chongqing Xinqiu Intelligent Technology Co Ltd
Contact: [email protected]

1. Information Collection

The App is a completely offline guitar tuning and practice application. We commit to:

No Personal Information Collection: We do not collect your name, email, phone number, or any other personally identifiable information.
No Usage Data Collection: We do not track your app usage, tuning history, or any behavioral data.
No Device Information Collection: We do not collect your device model, operating system version, or unique device identifiers.

2. Microphone Permission

The App requires access to your device's microphone to detect audio frequencies and provide tuning functionality. Regarding microphone usage:

Audio data is processed in real-time only on your device
No audio is recorded, stored, or transmitted
Audio processing is entirely local
You can revoke microphone permission at any time in device settings

3. Local Data Storage

The App stores the following settings locally on your device:

Your selected instrument type (Guitar, Bass, Ukulele)
Tuning mode preferences
Custom tuning configurations
App theme and language settings
Your Pro purchase status, if any

This data is stored only on your device and is never uploaded to any server.

4. Purchases

The App offers an optional one-time "Pro" upgrade. In-app purchases and payment processing are handled entirely by the Google Play Store. We do not collect, process, receive, or store any payment or billing information.

5. Third-Party Services

The App does not integrate any third-party analytics, advertising, or tracking services. The App operates completely independently and does not communicate with external servers.

6. Data Security

Since we do not collect or transmit any data, there is no risk of data breaches. All app functionality runs securely on your device.

7. Children's Privacy

The App is suitable for all ages. Since we do not collect any personal information, we do not knowingly or unknowingly collect data from children.

8. Your Rights

You have the following rights:

Delete the app and all its local data at any time
Manage app permissions in device settings
Full control over your local settings and preferences

9. Privacy Policy Changes

If we make any changes to this privacy policy, we will update the revision date on this page. We recommend reviewing this policy periodically to stay informed of any changes.

10. Contact Us

If you have any questions or concerns about this privacy policy, please contact us through:

Support Page: support.html

Email: [email protected]

Developer / Publisher: Chongqing Xinqiu Intelligent Technology Co Ltd

11. Consent

By using the App, you consent to the terms of this privacy policy.