Birth details: date, time, place, gender — required to compute your astrological chart.

Account details: email and display name when you sign in via Google OAuth.

Payment details: processed directly by Sepay (Vietnam) or Stripe (international). We never store card numbers.

Technical data: IP address, browser, operating system, pages visited (via analytics cookies).

To compute charts and produce AI-driven analyses you request.

To send order confirmations and result links to your registered email.

To improve our service via anonymous usage analytics.

To respond when you contact our support team.

Birth details are encoded in result URLs; we do not store them in raw form on our servers.

Computation results may be cached to accelerate performance, but are not tied to personal identity.

All connections use HTTPS (TLS 1.3) encryption.

Payment data is handled to PCI-DSS standards by our partners Sepay and Stripe.

We do not sell personal data to anyone.

We disclose data only when legally required by competent authorities.

Infrastructure providers (Vercel, AWS, Google) process data solely to operate the system.

Access and view the data we hold about you.

Request correction or deletion of your data at any time.

Withdraw consent to data processing (does not affect prior lawful processing).

Lodge a complaint with a data protection authority if you believe your rights are infringed.

Contact privacy@celestia.app to exercise any of the above.

Functional cookies: language preference, theme, session token.

Analytics cookies (Google Analytics): anonymized IP, used to understand product interactions.

You may disable cookies in your browser; some features may stop working as expected.

This policy may be updated as needed. The latest version is always published here with the update date at the top.

Privacy inquiries: privacy@celestia.app

General support: support@celestia.app