Terms of Service

ZEIDOKU - Premium Puzzle Experience

Last Updated: January 3, 2026

By downloading, installing, or using ZEIDOKU, you agree to be bound by these Terms of Service. If you do not agree to these terms, please do not use the app.

1. Acceptance of Terms

These Terms of Service ("Terms") govern your use of the ZEIDOKU mobile application ("App") operated by Zeigarn Studios ("we," "us," or "our"). By accessing or using the App, you agree to be bound by these Terms.

2. License to Use

We grant you a limited, non-exclusive, non-transferable, revocable license to use the App for personal, non-commercial purposes, subject to these Terms.

You may not:

3. User Accounts

You may create an account using Apple Sign-In, Google Sign-In, or as a guest. You are responsible for:

4. In-App Purchases

ZEIDOKU offers premium features through in-app purchases ("Premium Subscription"). By making a purchase, you agree that:

5. Restore Purchases

If you have previously purchased a premium subscription, you can restore your purchases by tapping the "Restore Purchases" button in the Store section of the App.

6. Intellectual Property

All content, features, and functionality of the App, including but not limited to text, graphics, logos, icons, images, audio clips, and software, are owned by Zeigarn Studios and are protected by international copyright and trademark laws.

7. User Content

Any content you submit through the App (such as game progress and statistics) remains yours. However, you grant us a license to use, store, and process this content to provide the App's services.

8. Advertisements

The free version of ZEIDOKU may display advertisements. By using the free version, you consent to viewing these advertisements. Premium subscribers enjoy an ad-free experience.

9. Disclaimer of Warranties

The App is provided "as is" without warranties of any kind. We do not guarantee that the App will be uninterrupted, error-free, or free of harmful components.

10. Limitation of Liability

To the maximum extent permitted by law, Zeigarn Studios shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of the App.

11. Termination

We reserve the right to terminate or suspend your access to the App at any time, without prior notice, for conduct that we believe violates these Terms or is harmful to other users, us, or third parties.

12. Changes to Terms

We may update these Terms from time to time. We will notify you of any changes by posting the new Terms on this page and updating the "Last Updated" date. Your continued use of the App after any changes constitutes acceptance of the new Terms.

13. Governing Law

These Terms shall be governed by and construed in accordance with the laws of the jurisdiction in which Zeigarn Studios is established, without regard to its conflict of law provisions.

14. Contact Us

If you have any questions about these Terms, please contact us at: