Privacy Policy - Chaos Sudoku

1. Introduction

Welcome to Chaos Sudoku ("we," "our," or "us"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application Chaos Sudoku ("the App").

2. Information We Collect

2.1 Account Information

• Google Account: When you sign in with Google, we receive your Google ID, email address, and display name
• Username: You can set a custom username for leaderboards and achievements
• Account Type: We track whether you're using a guest account or permanent account

2.2 Game Data

• Game Scores: Your completion times, difficulty levels, and game statistics
• Progress Data: Achievement unlocks, badges earned, and leaderboard rankings
• Game Statistics: Number of games completed, gamemodes played, and performance metrics

2.3 Technical Information

• Device Information: We may collect basic device information for app functionality
• App Usage: General usage patterns to improve the app experience

3. How We Use Your Information

We use your information to:

• Provide game functionality and track your progress
• Display your scores on leaderboards (using your chosen username)
• Award achievements and track statistics
• Maintain your account across devices (for permanent accounts)
• Improve the app experience

4. Data Storage and Security

4.1 Data Storage

• Authentication: Handled by Firebase Authentication (Google)
• Game Data: Stored securely in Supabase databases
• Location: Data is processed and stored on servers located in the United States

4.2 Security Measures

• All data transmission is encrypted
• Database access is protected with Row Level Security (RLS)
• User data is isolated - you can only access your own data

5. Data Sharing

We do NOT sell, trade, or otherwise transfer your personal information to third parties, except:

• Service Providers: Firebase (Google) for authentication, Supabase for data storage
• Legal Requirements: If required by law or to protect our rights

5.1 Public Information

• Leaderboards: Your chosen username and scores are visible to other users
• Achievements: Your achievement progress may be visible in global statistics

6. Guest Accounts

• Guest accounts provide limited functionality
• Guest data is tied to your device and may be lost if you uninstall the app
• We recommend upgrading to a permanent account to secure your progress

7. Your Rights

7.1 Data Access

You can view all your data within the app through:

• Settings screen (account information)
• Achievements screen (progress and statistics)
• Leaderboards (your scores and rankings)

7.2 Data Deletion

To request deletion of your account and all associated data:

• Email: info@chaossudoku.com
• Subject: Data Deletion Request
• Include: Your username or Google account email

We will process deletion requests within 30 days.

7.3 Data Portability

To request a copy of your data, contact us at info@chaossudoku.com

8. Data Retention

• Active Accounts: Data is retained while your account is active
• Inactive Accounts: We may delete inactive guest accounts after 365 days
• Deleted Accounts: All data is permanently deleted within 30 days of deletion request

9. Children's Privacy

Chaos Sudoku does not knowingly collect personal information from children under 13. If you believe we have collected information from a child under 13, please contact us immediately.

10. International Users

If you are accessing the App from outside the United States, please note that your information may be transferred to, stored, and processed in the United States where our servers are located.

11. Changes to This Policy

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

• Posting the new Privacy Policy in the app
• Updating the "Last updated" date
• For significant changes, we may require re-acceptance

12. Contact Us

If you have any questions about this Privacy Policy or our privacy practices: