Privacy Policy

Last Updated: August 8, 2025

1. Introduction

Welcome to ChiuDoku! We are committed to protecting your privacy and ensuring you have a positive experience while using our Sudoku puzzle application. This Privacy Policy explains how we collect, use, and safeguard your information when you use our mobile application.

2. Information We Collect

ChiuDoku is designed with privacy in mind. We collect minimal information to provide you with the best puzzle experience:

  • Game Progress: Your puzzle completion times, difficulty preferences, and game statistics are stored locally on your device.
  • User Preferences: Settings such as theme preferences, sound settings, and gameplay options.
  • Anonymous Usage Data: We may collect anonymous usage statistics to improve app performance and user experience.

3. Camera Permission

ChiuDoku requests camera permission for the following specific purpose:

QR Code Scanner: The camera is used exclusively to scan QR codes that contain Sudoku puzzles shared by other users or from external sources.

  • We do not store, process, or transmit any camera data or images
  • The camera is only active when you explicitly use the QR code scanning feature
  • You can deny camera permission and still use all other app features
  • No photos or videos are captured, saved, or shared

4. How We Use Your Information

We use the collected information solely to:

  • Provide and maintain the Sudoku gaming experience
  • Save your game progress and preferences locally
  • Enable QR code puzzle sharing functionality
  • Improve app performance and fix bugs
  • Analyze usage patterns to enhance user experience (anonymously)

5. Data Storage and Security

  • Local Storage: All personal game data is stored locally on your device
  • No Personal Data Transmission: We do not collect or transmit personal information to external servers
  • Security Measures: We implement appropriate technical measures to protect your data
  • Data Retention: Game data remains on your device until you uninstall the app or clear app data

6. Third-Party Services

ChiuDoku may use third-party services for analytics and crash reporting. These services operate under their own privacy policies and may collect anonymous usage data to help us improve the app.

7. Children's Privacy

ChiuDoku is suitable for all ages. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided personal information, please contact us.

8. Your Rights and Choices

  • Camera Permission: You can enable or disable camera access in your device settings
  • Data Deletion: Uninstall the app or clear app data to remove all stored information
  • Opt-out: Contact us to opt-out of anonymous usage analytics

9. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy within the app and updating the “Last Updated” date. Your continued use of ChiuDoku after any changes constitutes acceptance of the updated policy.

10. Contact Us

If you have any questions about this Privacy Policy or our data practices, please contact us:

Email: developer@appjetive.com

Subject: ChiuDoku Privacy Policy Inquiry

This Privacy Policy is designed to be transparent about our data practices and your rights. We are committed to protecting your privacy while providing you with an excellent Sudoku gaming experience.