Privacy Policy — Zudoku

Last updated: September 6, 2026

This Privacy Policy describes how Golden Mind Services LTD ("GoldenMind", "we", "us", or "our") handles information when you use the Zudoku mobile application (the "App").

Zudoku is an offline logic puzzle game for iOS and Android. By using the App, you agree to this Privacy Policy. If you do not agree, please do not use the App.

1. Who we are

Company: Golden Mind Services LTD
Address: 5611 Goring Street, Burnaby, BC V5B0A3, Canada
Contact: info@goldenmind.io

App: Zudoku
Application ID: io.goldenmind.zudoku

2. Summary

3. Information stored on your device

Zudoku saves some information locally on your phone or tablet using the device’s app storage (SharedPreferences). This data stays on your device and is not uploaded to GoldenMind servers. It includes:

If you uninstall the App or clear app data, this local information is deleted unless you back up your device through your operating system.

4. Information collected automatically

4.1 Firebase Analytics

We use Google Firebase Analytics to understand how the App is used and to improve it. Firebase may collect information such as:

We do not use Firebase Analytics to collect your name, email address, or the contents of puzzles you solve. Analytics collection is disabled in debug builds of the App.

Learn more: Firebase Privacy and Google Privacy Policy.

4.2 Advertising (Google AdMob)

Zudoku is free and supported by ads through Google AdMob. AdMob and its partners may collect and use information to show and measure ads, including:

Ads may be personalized or non-personalized depending on your choices and applicable law. Where required, the App uses Google’s User Messaging Platform (UMP) to request your consent before serving ads. You can review or change ad privacy choices in the App under Settings → Ad privacy choices when that option is available.

On iOS, if the system asks for permission to track activity across apps and websites, that choice affects personalized advertising. Zudoku may use SKAdNetwork for privacy-preserving ad attribution on iOS.

Learn more: AdMob & privacy and How Google uses data in advertising.

5. What we do not collect

Zudoku does not:

6. How we use information

We use information to:

7. Sharing with service providers

We share information with third-party service providers only as needed to operate the App, including:

These providers process data under their own privacy policies. We do not control their independent use of information.

8. International transfers

Service providers such as Google may process data in countries other than your own, including the United States. Where required, appropriate safeguards apply under applicable law.

9. Retention

10. Your choices and rights

Depending on where you live, you may have rights to access, correct, delete, or restrict certain processing of your information.

If you are in the European Economic Area, United Kingdom, or Canada, you may also have the right to lodge a complaint with your local data protection authority.

11. Children’s privacy

Zudoku is not directed to children under 13, and we do not knowingly collect personal information from children under 13. If you believe a child has provided us personal information, contact us at info@goldenmind.io and we will take appropriate steps to delete it.

The App contains advertising. Parents and guardians should review device and ad settings if the App is used by minors.

12. Security

We use commercially reasonable measures to protect information processed through our service providers. No method of transmission or storage is 100% secure.

13. Changes to this policy

We may update this Privacy Policy from time to time. We will post the updated policy on this page and change the "Last updated" date above. Continued use of the App after changes means you accept the updated policy.

14. Other GoldenMind apps

This policy applies specifically to Zudoku. Our general GoldenMind privacy policy is available at goldenmind.io/Privacy-Policy.html.

15. Contact us

Questions about this Privacy Policy or Zudoku’s data practices?
Email: info@goldenmind.io