Privacy Policy | Smart Classic Sudoku

This Privacy Policy applies to the Smart Classic Sudoku mobile application ("App"), developed by Cybrainx. It explains how we collect, use, and protect your data.

By using the App, you agree to this Privacy Policy. If you disagree, please discontinue use.

1. Information We Collect

Usage & Analytics Data: Device info, OS version, screen interactions, session duration, crash reports — via Firebase/Google Analytics.
Advertising Data: Google AdMob may collect identifiers to serve personalized ads.
Purchase Data: Handled by Google Play/Apple App Store. We do not store payment details.
Game Progress: Puzzle stats and streaks stored locally or via Google Play Games (if enabled).

2. How We Use Your Information

To operate and improve the App;
To serve ads via Google AdMob;
To analyze usage and fix bugs via Firebase;
To manage subscriptions via RevenueCat.

3. Third-Party Services

Google AdMob — advertising
Firebase / Google Analytics — analytics & crashes
RevenueCat — subscription management

4. Children's Privacy

The App is not directed to children under 13. We do not knowingly collect their data. Contact us if you believe a child has submitted information.

5. Data Security

We apply reasonable technical measures to protect your data. No online transmission is 100% secure.

6. Your Rights

You may request access, correction, or deletion of your data by contacting owner@cybrainx.com.

7. Changes

We may update this policy periodically. Continued use constitutes acceptance of changes.

8. Contact

Email: owner@cybrainx.com
Website: cybrainx.com
Address: Belo Horizonte, MG — Brazil