0–5 years · Developmental blueprints

Privacy policy

Last updated March 2026. We collect the minimum needed to run the service.

What we collect

When you generate a report, we collect your child's first name, date of birth, time of birth (optional), and birth city. The city is used to derive coordinates and timezone for chart calculation — we do not store precise coordinates beyond what is needed for the report.

When you purchase a full report, we collect your email address — either directly or via PayPal after payment. We do not store your payment card details. All payment processing is handled by PayPal.

What we don't collect

  • Your name or surname
  • Your child's surname
  • Your address, phone number, or any identifier beyond email
  • Advertising tracking data or third-party pixels
  • Cookies beyond what is strictly necessary for session management

How we use your data

Your child's birth data is used solely to calculate the chart and generate the report. Your email address is used to send your report access link and, if you opt in, occasional product updates. You can unsubscribe at any time.

We do not use report content for training AI models. We do not sell data to third parties. We do not use your data for advertising.

Third-party services

We use the following services to operate BirthStar:

PayPalPayment processing
ResendTransactional email delivery
NeonDatabase hosting (EU region)
VercelApplication hosting
AnthropicAI model for report generation

We share only the minimum data required for each service to function. Each service has its own privacy policy.

Data retention

Reports are retained indefinitely so you can access them at any time. Session tokens expire after 30 days. If you want your data deleted, email us at privacy@birthstar.ai and we will remove it within 7 days.

Contact

Questions about this policy: privacy@birthstar.ai