SudokuSphere Privacy Policy

1. Overview

This Privacy Policy describes how SudokuSphere collects, uses, and protects your information when you use our mobile application. By using SudokuSphere, you agree to the collection and use of information in accordance with this policy.

2. Information We Collect

Game Data

• Game progress, difficulty level, and completion status
• Game statistics (time taken, mistakes, hints used)
• Language preference (Western, Arabic, Devanagari)
• Difficulty preference (Easy, Medium, Hard, Expert)

Device Information

• Device model and manufacturer
• Android version and system information
• App version
• Screen resolution

Advertising Data

• Google Advertising ID for personalized ads
• Ad interaction data
• Reward ad usage for hints

3. How We Use Your Information

Game Functionality

• Save and restore game progress locally
• Provide hints and game assistance
• Track achievements and statistics
• Remember preferences

App Improvement

• Analyze usage to improve features
• Fix bugs and optimize performance
• Develop new features
• Ensure app stability

Advertising

• Display relevant ads through Google AdMob
• Provide reward ads for hints
• Show banner and interstitial ads
• Measure ad effectiveness

4. Third-Party Services

Google Mobile Ads (AdMob)

We use Google Mobile Ads to display advertisements. AdMob may collect:

• Advertising ID for personalized ads
• Device information for ad targeting
• App usage data for optimization
• Location data (if permitted)

Google's Privacy Policy
AdMob Terms

5. Data Storage and Security

Local Storage

• Game progress stored locally on device via AsyncStorage
• Preferences saved locally
• No personal data transmitted to our servers

Security

• Data encrypted when stored locally
• Secure communication protocols
• Regular security updates
• No collection of sensitive personal information

Data Retention

• Game data retained until app uninstall
• Analytics data retained up to 2 years
• Advertising data follows Google's policies

6. Your Rights and Choices

App Settings

• Change language and number preferences
• Adjust difficulty levels
• Reset game progress
• Clear local app data

Device Settings

• Opt out of personalized ads in Android settings
• Reset advertising ID
• Manage app permissions
• Uninstall app to remove all data

GDPR Rights (EU Users) & UMP Consent

European users are prompted with a Google User Messaging Platform (UMP) consent form on first launch.

• Right to Access: Request information about your data
• Right to Rectification: Correct inaccurate data
• Right to Erasure: Request deletion of your data
• Right to Portability: Export your game data
• Right to Object: Opt out of data processing

CCPA Rights (California Users)

• Right to Know: Information about data collection
• Right to Delete: Request deletion of personal information
• Right to Opt-Out: Opt out of sale of personal information
• Right to Non-Discrimination: Equal service regardless of choices

7. Children's Privacy

SudokuSphere is suitable for all ages. We do not knowingly collect personal information from children under 13 without parental consent. We comply with COPPA (Children's Online Privacy Protection Act).

8. Privacy Policy Updates

We may update this Privacy Policy from time to time. We will notify you by:

• Posting the new policy on this page
• Updating the "Last Updated" date
• Notifying through the app (for significant changes)

© 2026 SudokuSphere. All rights reserved.