Privacy Policy
Last updated: October 19, 2026
Cosmochi, Inc., a Delaware corporation (“Cosmochi,” “we,” or “us”), operates the Cosmochi app and cosmochi.app and is responsible for the personal data described in this policy.
What We Collect
When you create an account, we collect your email address and the birth data you provide (date, time, and location of birth). We use this information to generate your astrological forecasts and charts, to run your account, and to share with the service providers listed below, only for the purposes described there.
How We Use Your Data
- Generate personalized forecasts, charts, and bond reports
- Maintain your account and saved profiles
- Send transactional emails (password resets, account notifications)
- Understand how the service is used (product analytics tied to your account; see Third-party services below)
Data Storage
Your data is stored securely on Supabase (hosted on AWS) and Vercel. We use industry-standard encryption for data in transit (TLS) and at rest.
We do not sell your personal data to anyone.
Third-party services
We rely on a small number of service providers to run Cosmochi. Each receives only what it needs for the purpose described:
- Anthropic — your birth data and chart context are sent to generate personalized readings. In the iOS app this happens only after you agree on the welcome screen shown at first sign-in, and you can turn it off anytime under Profile → Privacy → Personalized readings; on the web it happens once you save a profile. Anthropic does not use this data to train its models.
- Cloudflare — when you ask a question by voice, the recording is sent to Cloudflare Workers AI to be turned into text for your question. We do not store the recording: it is used for that one transcription and discarded.
- Apple / RevenueCat — purchase history and subscription status, tied to an app user id that is your account id, so we can unlock what you paid for.
- Sentry — crash diagnostics with your user id, so we can find and fix errors.
- PostHog — product analytics with your user id, so we can understand how the app is used.
- Resend — your email address, to deliver transactional email such as password resets.
- Stripe — payment details for web billing only; card numbers never reach our servers.
- Geoapify — the birthplace text you type, to look up its coordinates and timezone.
- Supabase and Vercel — hosting for our database and application.
Children
Cosmochi is not directed at children under 16, and you must be at least 16 to create an account. If we learn that an account belongs to someone under 16, we delete it. You can add profiles for other people, including children: their birth details and the name and pronouns you give them are stored with your account and processed the same way as your own, including for the readings, birthplace lookup and share links described above.
Cookies
We use essential cookies for authentication and storing your theme/language preferences. Product analytics stores an identifier in your browser only after you sign in, and removes it when you sign out; before sign-in it keeps none. You can turn product analytics off for your account under Profile, on the web or in the iOS app; nothing is recorded while it is off. We do not use advertising cookies.
Your Rights
You can view, edit, or delete your profile data at any time from the Profile tab. To delete your account entirely, open the Profile tab on the web or in the iOS app and choose Delete account. This permanently removes your account and all associated data.
Contact
Questions about this policy? Email us at hello@cosmochi.app.