What we collect
- Game progress and app preferences stored locally (DataStore)
- Advertising data via Google AdMob (rewarded ads)
- Device vibration (when enabled in settings)
- In-app sound effects (processed locally on your device)
- Anonymous diagnostic data in case of app errors (optional, via Google Play)
What we do NOT collect
- User registration or account creation
- Location or GPS data
- Camera or photo access
- Contacts or address book
- Sensitive permissions (only Internet and Vibration when applicable)
1. Introduction
This Privacy Policy describes how ProfArvi ("we", "us", or "our") handles information in the mobile application Hexadoku, a puzzle game similar to Sudoku that uses 16 symbols. By using the app, you agree to the practices described in this policy.
2. Information we collect
Hexadoku is designed to work with minimal data collection. We do not require you to create an account or provide personal information to use the app.
2.1 Local data
The app may store settings and progress on your device using Android DataStore. This information stays on your device and is not transmitted to our servers.
2.2 Advertising
The app uses Google AdMob to display ads (including rewarded ads that you can choose to watch). AdMob may collect device identifiers, IP address, and interaction data to personalize and measure ads. See Google's privacy policy for details.
2.3 Diagnostic data
If the app crashes, anonymous crash reports may be sent through Google Play services to help us fix issues. You can choose not to share this data in your device settings.
3. App permissions
Hexadoku requests only the permissions needed for its core functionality:
- Internet — required to load ads and display this privacy policy
- Vibration — used for haptic feedback during gameplay
4. Third-party services
We use the following third-party services. Each provider has its own privacy policy:
5. Local storage
Preferences such as sound, vibration, language, and game progress are saved locally on your device using Android DataStore. You can clear this data by clearing the app's storage in your device settings or by uninstalling the app.
6. Children's privacy
Our services are not directed to children under 13. We do not knowingly collect personal information from children. If you believe a child has provided personal information, please contact us at profarvi@gmail.com.
7. Security
We use commercially reasonable measures to protect information. However, no method of transmission or electronic storage is 100% secure.
8. Changes to this policy
We may update this policy from time to time. The "Last updated" date at the top will reflect any changes. Continued use of the app after changes constitutes acceptance.
9. Contact
If you have questions about this Privacy Policy, contact us at profarvi@gmail.com.