Privacy Policy

Last updated: May 5, 2026

1. Information We Collect

C-Sides collects the following information when you use our service:

Account Information: When you register, we collect your email address and password (stored securely via Supabase).

Usage Data: We collect information about artists you search for, analyze, and add to your playlists.

Anonymous Usage: Guest users are assigned a temporary anonymous ID. This data is deleted after 30 days of inactivity.

2. How We Use Your Information

We use the information we collect to:

— Provide personalized music recommendations based on your preferences

— Save your playlists and favorite artists

— Improve our recommendation algorithm

— Analyze usage patterns to improve the service

3. Third-Party Services

C-Sides integrates with the following third-party services:

Spotify API: Used to fetch artist and track data.

Last.fm API: Used to fetch listening statistics.

Genius API: Used to fetch song popularity data.

Supabase: Used for authentication and data storage.

Google Analytics: Used to analyze app usage.

4. Data Storage and Security

Your data is stored securely on Supabase servers. We use industry-standard encryption and Row Level Security (RLS) to ensure your data is only accessible to you.

6. Your Rights

You have the right to:

— Access your personal data

— Export your data

You can exercise these rights by visiting Profile Settings in the app or contacting us at the email below.

7. Children's Privacy

C-Sides is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13.

8. 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 policy on this page.

9. Contact Us

If you have any questions about this Privacy Policy, please contact us at: csidesapp@gmail.com