Privacy Policy

1. Introduction

Welcome to Geek Advent Calendar. We are committed to protecting your privacy and personal data. This privacy policy explains how we collect, use, and protect your information when you use our platform.

2. Data Collected

We collect the following information:

• Account information: email address, display name, profile photo (if you sign in via Google)
• Progress data: completed challenges, submitted solutions, experience points, earned badges
• Technical data: connection logs, browser type, IP address (for security purposes)

3. Use of Data

Your data is used to:

• Manage your account and your progress in the Advent Calendar
• Display leaderboards and statistics
• Improve our platform and fix bugs
• Contact you regarding your account (if necessary)
• Award prizes to top 5 winners

4. Storage and Security

Your data is securely stored on Google Firebase servers, located in the European Union (europe-west1). We use standard encryption protocols to protect your information. Passwords are managed by Firebase Authentication and are never stored in plain text.

5. Data Sharing

We do not sell, rent, or share your personal data with third parties, except in the following cases:

• Your display name and score are visible on the public leaderboard
• If required by law or a competent legal authority
• To protect our rights or the safety of our users

6. Your Rights (GDPR)

In accordance with the General Data Protection Regulation (GDPR), you have the following rights:

• Right of access: obtain a copy of your data
• Right to rectification: correct your information
• Right to erasure: request deletion of your account
• Right to portability: receive your data in a standard format
• Right to object: object to certain processing

To exercise these rights, contact us at the address below.

7. Cookies

We use essential technical cookies for site functionality (authentication, theme preferences). We do not use advertising or third-party tracking cookies.

8. Data Retention

Your data is retained as long as your account is active. After deletion of your account, your personal data is erased within 30 days. Anonymized data may be retained for statistical purposes.

9. Changes

We may update this privacy policy. Significant changes will be notified on the platform. We encourage you to regularly check this page.

10. Contact

For any questions regarding this privacy policy or to exercise your rights, you can contact us: