Privacy Policy

Last updated: October 17, 2025

1. Information We Collect

SynastryChart collects minimal information necessary to provide our astrocartography services:

  • Birth Information: Date, time, and location you provide for chart calculations
  • Usage Data: Anonymous analytics data including page views and feature usage
  • Cookies: Essential cookies for site functionality

2. How We Use Your Information

We use the information we collect to:

  • Generate accurate astrocartography calculations using Swiss Ephemeris
  • Improve our service and user experience
  • Analyze usage patterns to enhance features
  • Comply with legal obligations

Important: We do NOT sell, rent, or share your personal information with third parties for marketing purposes.

3. Data Storage and Security

Your data security is our priority:

  • Session Storage: Birth chart calculations are processed in real-time and not permanently stored
  • Encryption: All data transmissions use HTTPS/TLS encryption
  • Third-party Services: We use trusted providers (Vercel, Mapbox) who comply with GDPR and privacy standards
  • No Long-term Storage: We do not maintain a database of user birth information

4. Third-Party Services

SynastryChart uses the following third-party services:

Mapbox

Provides map tiles and geocoding services. See Mapbox Privacy Policy

Vercel

Hosts our website and handles server requests. See Vercel Privacy Policy

5. Your Rights

Under GDPR and CCPA, you have the right to:

  • Access: Request what personal data we hold about you
  • Correction: Request corrections to inaccurate data
  • Deletion: Request deletion of your data (where applicable)
  • Opt-out: Opt-out of analytics tracking
  • Data Portability: Receive your data in a portable format

6. Cookies Policy

We use minimal cookies:

  • Essential Cookies: Required for site functionality (cannot be disabled)
  • Analytics Cookies: Help us understand how users interact with our site (optional)

You can manage cookie preferences in your browser settings.

7. Children's Privacy

SynastryChart is not directed at children under 13. We do not knowingly collect personal information from children. If you are a parent and believe your child has provided us with information, please contact us immediately.

8. Changes to This Policy

We may update this privacy policy occasionally. We will notify you of significant changes by posting the new policy on this page with an updated "Last Updated" date. We encourage you to review this policy periodically.

Contact Us

If you have questions about this Privacy Policy or our data practices, please contact us: