Privacy Policy

Last updated: March 2026

1. Data Controller

The data controller for your personal data is oddsly. For any privacy-related inquiries, please contact us at privacy@oddsly.app.

2. Data We Collect

We collect the following categories of personal data:

• Email address (provided during registration)
• Nickname (optional, user-provided)
• Google profile data (name and avatar, if using Google OAuth)
• Usage patterns and session data

3. Legal Basis for Processing

We process your personal data under the following legal bases:

• Contract performance — providing the service requires authentication
• Legitimate interest — service improvement and security
• Consent — marketing emails, if any

4. How We Use Your Data

Your data is used for the following purposes:

• Account authentication
• Displaying predictions
• Communicating service updates
• Improving the platform

5. Data Retention

Account data is kept until you request deletion. Session logs are retained for 90 days. Waitlist emails are kept until launch or until you unsubscribe.

6. Third-Party Processors

We use the following third-party services to operate the platform:

• Supabase — database hosting (EU region)
• Vercel — web hosting (edge network)
• Google — OAuth authentication only; we receive your name and email

7. Your Rights (GDPR)

Under the General Data Protection Regulation, you have the following rights:

• Right to access your data
• Right to rectification (edit your profile)
• Right to erasure (delete your account)
• Right to data portability
• Right to object to processing
• Right to withdraw consent

To exercise any of these rights, contact us at privacy@oddsly.app.

8. Polish Data Protection Authority

You have the right to lodge a complaint with UODO (Urząd Ochrony Danych Osobowych) at uodo.gov.pl.

9. International Data Transfers

Supabase may process data outside the EU under Standard Contractual Clauses. Vercel uses a global edge network with EU processing available.

10. Cookies

We use cookies for authentication and analytics (Google Analytics, Vercel Analytics). For more details, see our Cookie Policy.

11. Changes

We may update this privacy policy from time to time. Material changes will be notified at least 14 days in advance. For questions, contact us at privacy@oddsly.app.