Last Updated: December 2024

🔒 Privacy First

We believe in minimal data collection and maximum privacy protection. We only collect what's necessary to provide you with the best Sudoku experience.

1. Information We Collect

1.1 Information You Provide

We only collect information that you voluntarily provide to us, such as:

1.2 Automatically Collected Information

When you use 9sudoku.com, we may automatically collect certain information:

Data Type Purpose Retention
Game progress (local storage) Save your current puzzle state Until you clear browser data
Basic analytics Understand usage patterns Aggregated, anonymized
Error logs Fix technical issues 30 days maximum

2. How We Use Your Information

We use the information we collect to:

We do NOT:

3. Data Storage and Security

3.1 Local Storage

Most of your game data (current puzzle, preferences, progress) is stored locally on your device using browser local storage. This means:

3.2 Security Measures

We implement appropriate security measures to protect your information:

4. Third-Party Services

4.1 Google AdSense

We may use Google AdSense to display advertisements. Google may use cookies and other tracking technologies. Please review Google's Privacy Policy for more information.

4.2 Analytics

We may use basic analytics tools to understand how users interact with our site. This data is aggregated and anonymized.

5. Cookies and Similar Technologies

We use cookies and similar technologies to:

You can control cookies through your browser settings. For more detailed information, see our Cookie Policy.

6. Your Rights and Choices

You have the right to:

To exercise these rights, please contact us using the information provided below.

7. Children's Privacy

9sudoku.com is suitable for all ages, including children. We do not knowingly collect personal information from children under 13 without parental consent. If you believe we have inadvertently collected such information, please contact us immediately.

8. International Users

9sudoku.com is accessible worldwide. If you access our service from outside our primary jurisdiction, you acknowledge that your information may be transferred to and processed in different countries with different privacy laws.

9. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by:

10. Contact Us

If you have any questions or concerns about this Privacy Policy, please contact us:

Privacy Questions?

We're committed to protecting your privacy. If you have any questions or concerns, don't hesitate to reach out.

Contact Us →