Privacy Policy
Last updated on August 25, 2025
Your privacy is important to us. This Privacy Policy explains how Classic Sudoku: Sudoku Puzzle Game (“the App”, “we”, “our”) collects, uses, and protects your information. By using the App, you agree to this policy.
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Information We Collect
a) Information you provide
The App does not require you to create an account, provide personal details, or log in.
All game progress (puzzle state, notes, trophies, settings) is stored locally on your device only.
b) Information collected automatically
We use trusted third-party services that may collect certain data automatically:
Firebase Analytics (by Google):
Collects anonymized app usage data (e.g., screens viewed, events triggered, device type, country).
Helps us understand app performance and improve gameplay.
Does not collect personally identifying information.
Google AdMob (by Google):
Provides ads in the app.
May collect and use device identifiers (e.g., Android Advertising ID) to deliver personalized or non-personalized ads.
Google may use cookies and similar technologies in line with their Google Privacy Policy
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2. How We Use Data
To monitor app performance and improve features (Firebase Analytics).
To show ads and keep the app free to play (AdMob).
We do not sell or share your personal information with other third parties.
3. Data Security
All analytics and ad data is encrypted in transit.
Local game progress remains only on your device.
4. Data Retention & Deletion
Local game data is deleted automatically when you uninstall the app.
Firebase Analytics and AdMob data are stored by Google according to their policies.
If you want to request deletion of your data collected through third-party services, you can contact us (see below) and we will guide you.
5. Children’s Privacy
This app is intended for a general audience. It does not knowingly collect data from children under 13.
6. Changes to This Policy
We may update this policy from time to time. Updates will be posted here with a new “Last updated” date.
7. Contact Us
If you have questions or requests about this Privacy Policy, please contact us: