Privacy Policy

Last updated: January 3, 2025

1. Introduction

AI Arena ("we," "our," or "us") operates the AI Arena mobile application and website at ai-arena.cz. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our service.

By using AI Arena, you agree to the collection and use of information in accordance with this policy. If you do not agree with our policies and practices, do not use our service.

2. Information We Collect

2.1 Information You Provide Directly

• Account Information: When you sign up using Google OAuth, we collect your Google account email, display name, and profile picture URL.
• Content: AI-generated images and videos you upload to compete in our platform.
• User Interactions: Your votes, ratings, and engagement with content on our platform.

2.2 Information Collected Automatically

• Usage Data: Information about how you use the app, including features accessed and time spent.
• Device Information: Device type, operating system, app version, and unique device identifiers.
• Performance Data: Error logs and crash reports to improve app stability.

2.3 Information from Third Parties

• Google OAuth: Basic profile information as permitted by your Google account settings.

3. How We Use Your Information

We use your information for the following purposes:

• Provide and maintain the AI Arena service
• Authenticate your account and ensure security
• Calculate ELO ratings and competition rankings
• Display leaderboards and user statistics
• Moderate content and enforce community guidelines
• Send important service updates and notifications
• Improve our service through analytics and user feedback
• Comply with legal obligations

4. Legal Basis for Processing (GDPR)

For users in the European Economic Area, our legal basis for processing your personal data includes:

• Contract: Processing necessary to provide the AI Arena service you've requested
• Legitimate Interest: Improving our service, preventing fraud, and ensuring security
• Consent: For optional features like analytics and marketing communications
• Legal Obligation: Complying with applicable laws and regulations

5. Information Sharing and Disclosure

We do not sell, trade, or rent your personal information. We may share your information only in these limited circumstances:

• Public Content: Content you upload and your username are visible to other users as part of the competitive nature of our platform
• Service Providers: Trusted third parties who help us operate our service (Google Cloud Platform, analytics providers)
• Legal Requirements: When required by law or to protect our rights and users' safety
• Business Transfers: In connection with a merger, acquisition, or sale of assets (users will be notified)

6. Data Storage and Security

We implement appropriate technical and organizational measures to protect your personal data:

• Data is stored on secure Google Cloud Platform infrastructure
• Encryption in transit and at rest
• Access controls and authentication mechanisms
• Regular security audits and updates
• Data backup and disaster recovery procedures

7. Data Retention

We retain your personal data only as long as necessary:

• Account Data: Until you delete your account or request deletion
• Content: Until you remove it or delete your account
• Usage Analytics: Up to 2 years for service improvement
• Legal Compliance: As required by applicable laws

8. Your Rights (GDPR)

If you're in the European Economic Area, you have the following rights:

• Access: Request a copy of your personal data
• Rectification: Correct inaccurate personal data
• Erasure: Request deletion of your personal data
• Restriction: Limit how we process your data
• Portability: Receive your data in a structured format
• Objection: Object to processing based on legitimate interests
• Withdraw Consent: Remove consent for optional processing

To exercise these rights, contact us at privacy@ai-arena.cz.

9. Children's Privacy

AI Arena is not intended for children under 13 years of age. We do 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 Data Transfers

Your data may be processed in countries outside your residence. We ensure adequate protection through:

• Standard Contractual Clauses approved by the European Commission
• Adequacy decisions from relevant authorities
• Certification schemes and codes of conduct

11. Cookies and Tracking

Our website uses essential cookies for functionality and optional cookies for analytics:

• Essential Cookies: Required for website operation and security
• Analytics Cookies: Help us understand how visitors use our website (with your consent)
• Preference Cookies: Remember your settings and choices

You can manage cookie preferences through your browser settings or our cookie consent banner.

12. Changes to This Privacy Policy

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

• Posting the new Privacy Policy on this page
• Updating the "Last updated" date
• Sending an in-app notification for material changes
• Emailing registered users for significant changes

13. Contact Information

14. Supervisory Authority

If you're in the EU and believe we haven't addressed your concerns, you have the right to lodge a complaint with your local data protection authority.