Privacy Notice

Last updated: October 6, 2026

Here is what information YEON handles and how.

What we handle

The birth date, birth time, birth city, and gender choice you enter to calculate your chart.

The email address you use to sign in.

Usage records, such as which features were used and how often. These do not include birth details.

Birth details are used only to calculate your chart. Your name is not needed for the calculation.

We do not write your birth date, birth time, or location coordinates to logs or analytics.

We are preparing a feature to save birth details. Saving will be optional, and anything saved will be stored encrypted.

To write an explanation, we send only a summary derived from your calculated chart to our AI provider, Anthropic.

We do not send your name, your exact birth time, or your coordinates.

Sign-in and stored data are managed through the Supabase service.

We do not take payments right now. When sales begin, an external payment provider will process payments, and YEON will not store your card details.

We are preparing a way to delete and download your saved data from your account page.

We will post the change on this page with a new date.

If you have any questions, please email seoyulcreative@gmail.com.