Privacy Notice
How Hoshiyomi handles account, birth-profile, conversation, report, and measurement data.
Data we process
To calculate a chart we process the birth date, time, place, coordinates, time zone, and optional sex entered by you. If you create an account, saved profiles, email, nickname, login sessions, profile-bound conversations, orders, and generated reports are associated with that account.
Purpose and storage
Birth information is used to calculate and generate the requested chart, conversation replies, and report. Saved profiles, conversations, and reports remain available until you delete them, delete the bound profile, or close the account. Operational security logs are kept only as needed to diagnose abuse and delivery failures.
AI processing
Conversation questions, recent conversation context, the bound chart, and relevant excerpts from a completed paid report are sent to the configured AI provider to generate a reply. Hoshiyomi stores the conversation on its own server for cross-device continuity; the browser is not the authoritative copy.
Account closure
Closing an account deletes account-linked birth profiles, conversations, login sessions, public shares created while signed in, and birth-derived report files. Minimal de-identified transaction records may be retained where the law requires them.
First-party measurement, analytics, and advertising
We keep minimal first-party funnel events, consent state, campaign/click identifiers, and limited network/browser diagnostics in our own database for service operations, abuse and delivery diagnosis, and aggregate campaign measurement. This does not load Google/Meta tags or use analytics/advertising cookies. Optional Google/Meta tags load only after the relevant consent choice. We do not send birth date, birth time, place, coordinates, sex, chart text, username, raw email, or profile identifiers to Google or Meta.
Public sharing
Anonymous share cards contain only the summary that you confirm. They do not contain birth date, time, place, coordinates, time zone, or sex. You can revoke a share link from the device that created it or by closing the signed-in account that owns it.
Your choices
You can change analytics/advertising consent from the footer, edit or delete saved profiles, and close the account from the account menu. Do not use the paid service if you need seller/contact information that is not yet published.