Hwion Studio ("we", "us") respects your privacy. This policy describes how the mobile game Sudoku — Clean Number Puzzle ("the App") collects, uses, and shares information.
1. Information We Collect
The App does not require an account and does not directly request personally identifiable information such as your name, phone number, or email. The following information may be collected automatically during normal operation:
Device and advertising identifiers — Android Advertising ID, iOS IDFA (when permitted), device model, OS version, language, country.
Usage analytics — anonymous events such as screen views, puzzle completions, and difficulty selections (Firebase Analytics).
Crash and error logs — stack traces when the App terminates unexpectedly (Firebase Crashlytics).
Purchase receipts — transaction data issued by the App Store or Google Play during in-app purchases (via RevenueCat).
Gameplay data (completion records, statistics, settings) is stored only on your device and is never transmitted to our servers.
2. How We Use Information
To provide and stabilize the service.
To diagnose errors and crashes.
To display personalized or non-personalized advertisements (Google AdMob).
To process in-app purchases and restore previous purchases.
To analyze usage patterns and improve the App.
3. Third-Party Services
The App uses the following third-party services. Their handling of personal information is governed by their own policies: