Privacy Policy

1. Information We Collect

1.1 Information You Provide

• Account Information: When you create an account or sign in with Google, we collect your display name, email address, and profile picture.
• User-Generated Content: Game progress, scores, statistics, and group/tournament participation data.

1.2 Information Collected Automatically

• Device Information: Device type, operating system version, unique device identifiers, and mobile network information.
• Usage Data: Game statistics, session duration, feature usage, and in-app interactions.
• Log Data: IP address, access times, app crashes, and system activity.

1.3 Information from Third-Party Services

• Google Sign-In: If you choose to sign in with Google, we receive your basic profile information as authorized by you.
• Firebase Services: We use Google Firebase for authentication, database, analytics, and cloud messaging services.

2. How We Use Your Information

We use the collected information for the following purposes:

• Provide and Maintain the App: To operate game features, multiplayer functionality, and leaderboards.
• User Authentication: To create and manage your account securely.
• Communication: To send push notifications about game events, tournaments, and updates (with your consent).
• Analytics: To understand usage patterns and improve the App experience.
• Customer Support: To respond to your inquiries and resolve issues.
• Legal Compliance: To comply with applicable laws and regulations.

3. Information Sharing and Disclosure

We do not sell, trade, or rent your personal information to third parties. We may share your information only in the following circumstances:

3.1 With Other Users

Your display name, profile picture, and game statistics are visible to other players in multiplayer modes, groups, and leaderboards.

3.2 Service Providers

We employ third-party companies to facilitate our App:

• Google Firebase: Authentication, database, analytics, and cloud messaging.
• Google AdMob: To serve advertisements within the App.
• Google Play Services: For app distribution and in-app reviews.

These service providers have access to your information only to perform tasks on our behalf and are obligated not to disclose or use it for other purposes.

3.3 Legal Requirements

We may disclose your information if required to do so by law or in response to valid requests by public authorities.

4. Advertising

We display advertisements through Google AdMob. AdMob may collect and use certain information about your device and app usage to provide personalized ads. You can opt out of personalized advertising in your device settings.

For more information, please review Google's Privacy Policy.

5. Data Retention

We retain your personal information only for as long as necessary to fulfill the purposes outlined in this Privacy Policy. Game data and statistics are retained while your account is active. You may request deletion of your account and associated data at any time.

6. Data Security

We implement appropriate technical and organizational security measures to protect your personal information against unauthorized access, alteration, disclosure, or destruction. However, no method of transmission over the internet or electronic storage is 100% secure.

7. Children's Privacy

Sudoku Duel is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that we have collected personal information from a child under 13, we will take steps to delete such information promptly.

8. Your Rights

Depending on your location, you may have the following rights regarding your personal information:

• Access: Request a copy of the personal information we hold about you.
• Correction: Request correction of inaccurate or incomplete information.
• Deletion: Request deletion of your personal information.
• Opt-Out: Opt out of receiving push notifications through your device settings.

To exercise any of these rights, please contact us at the email address provided below.

9. Third-Party Links

The App may contain links to third-party websites or services. We are not responsible for the privacy practices of these third parties. We encourage you to review their privacy policies.

10. 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. You are advised to review this Privacy Policy periodically for any changes.