Sudoku Master Privacy Policy

Last Updated: February 24, 2026

Effective Date: February 24, 2026

Thank you for using "Sudoku Master" (hereinafter referred to as "this App"). We understand the importance of your personal information and will take appropriate security measures in accordance with applicable laws and regulations to protect your personal information.

1. Information We Collect

1.1 Game Data

To provide a complete gaming experience, we collect and store the following game-related data:

• Game progress and completion records
• Game statistics (such as completion time, accuracy rate, etc.)
• Game settings and preferences
• Achievements and leaderboard data

1.2 Device Information

To optimize app performance and user experience, we may collect:

• Device model and operating system version
• App version number
• Network status information

1.3 Non-Personal Information

We may collect non-personally identifiable information, including:

• App usage habits and preferences
• Feature usage frequency
• Crash logs and error reports (used to improve app stability)

2. How We Use Collected Information

The information we collect will be used for the following purposes:

1. Provide Game Services: Save your game progress to ensure you can continue playing across different devices
2. Improve User Experience: Analyze usage data to optimize app features and interface design
3. Technical Support: Diagnose and fix app issues to improve stability
4. Security: Prevent cheating and maintain game fairness

3. Information Storage

Your game data is primarily stored on your local device. We protect your data through the following methods:

• Local data is stored using encryption
• Data transmission uses secure encryption protocols
• Regular data backups and security checks

4. Information Sharing

We promise not to sell your personal information to third parties. We may share your information only in the following circumstances:

• With your explicit consent
• When required by law or government authorities
• With authorized partners (such as data analytics providers), who are required to comply with this Privacy Policy

5. Your Rights

You have the following rights regarding your personal information:

1. Right of Access: You have the right to access the personal information we hold about you
2. Right to Rectification: You have the right to request correction of inaccurate personal information
3. Right to Erasure: You have the right to request deletion of your personal information
4. Right to Data Portability: You have the right to export your game data
5. Right to Withdraw Consent: You have the right to withdraw previously given consent

6. Protection of Minors

We take the protection of minors' personal information very seriously. If you are a minor, please read this Policy with your guardian and use this App only after obtaining your guardian's consent. We do not knowingly collect personal information from minors. If we discover that we have inadvertently collected such information, we will promptly delete it.

7. Updates to Privacy Policy

We may update this Privacy Policy from time to time. The updated Policy will be published within the App, and we recommend that you review it regularly. Your continued use of this App indicates your acceptance of the revised Policy.

8. Contact Us

© 2026 Sudoku Master. All Rights Reserved.