🎮 Privacy Policy for Sudoku Championship League

1. Introduction

Sudoku Championship League ("we," "us," "our," or "Company") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application and related services.

2. Information We Collect

2.1 Information You Provide

• Account Information: Name, email address, country/region when you create a profile
• Payment Information: Processed securely through Google Play (we don't store payment details)
• Game Progress: Your puzzle solutions, scores, achievements, and leaderboard rankings
• Communications: Any messages or support requests you send us

2.2 Information Automatically Collected

• Device Information: Device model, OS version, unique device identifiers
• Usage Data: Gameplay statistics, session duration, features used
• Location Data: Country/region based on device settings (not precise location)
• Performance Data: App crash reports, error logs for improving stability

2.3 Third-Party Services

We use the following services that may collect data:

• Google Firebase: Authentication, database storage, crash reporting
• Google Mobile Ads: To serve personalized advertisements
• Google Analytics: To understand app usage patterns
• Google Play In-App Billing: For premium features and coin purchases

3. How We Use Your Information

We use collected information to:

• Create and manage your game account
• Provide game features (multiplayer, leaderboards, daily challenges)
• Process in-app purchases
• Send push notifications for events and achievements
• Improve app performance and fix bugs
• Comply with legal obligations
• Personalize your gaming experience

4. Data Sharing & Disclosure

4.1 What We Share

• Public Profile: Your display name and country may appear on leaderboards
• Google Services: Your data is processed by Firebase, Analytics, and AdMob
• Required by Law: We may disclose data if required by courts or authorities

4.2 What We Don't Share

• We do NOT sell your personal data to third parties
• We do NOT share your email with advertisers
• We do NOT share your payment information with anyone

5. Data Security

• Your account is protected by Google Sign-In authentication
• All data is encrypted in transit using HTTPS
• Firebase implements industry-standard security measures
• We regularly monitor for unauthorized access

6. Data Retention

• Account Data: Kept as long as your account is active; deleted upon request
• Game Progress: Deleted if you uninstall the app (unless synced to cloud)
• Logs: Automatically purged after 90 days
• Leaderboard Data: Maintained to preserve game history

7. Your Privacy Rights

You have the right to:

• Access: Request a copy of your personal data
• Delete: Request deletion of your account and data
• Export: Download your game progress
• Opt-Out: Disable personalized ads in device settings

To exercise these rights, email us at: krishna@vkss.tech

8. Cookies & Similar Technologies

We use:

• Firebase Analytics Cookies: To track app usage patterns
• Ad Cookies: For serving relevant advertisements
• Session Tokens: To keep you logged in

You can disable ad personalization in your Google Account settings.

9. Third-Party Links & Services

Our app may contain links to external websites and services. We are not responsible for their privacy practices. Please review their privacy policies independently.

10. Children's Privacy (COPPA Compliance)

• This app is intended for ages 13+
• We do not knowingly collect data from children under 13
• If we learn we've collected such data, we will delete it immediately
• Parents concerned about data should contact us immediately

11. California Privacy Rights (CCPA)

If you're a California resident, you have the right to:

• Know what personal data is collected
• Know whether it's shared or sold
• Delete personal information
• Opt-out of selling/sharing data

12. European Privacy Rights (GDPR)

If you're in the EU, you have the right to:

• Access your data
• Rectify inaccurate data
• Erase your data
• Restrict processing
• Data portability
• Lodge complaints with your local data protection authority

13. Changes to This Policy

We may update this Privacy Policy periodically. We'll notify you of material changes:

• By updating the "Last Updated" date
• By sending an in-app notification
• By requiring you to accept the new policy upon next login

Your continued use of the app constitutes acceptance of changes.

14. Contact Us

By downloading and using Sudoku Championship League, you acknowledge that you have read, understood, and agree to this Privacy Policy.