Cookies policy
Short version: no ads, no profiles. Analytics only if you accept it.
Last updated: June 20, 2026
No ads, analytics with your consent
No ads, no profiles. With your consent we measure usage to improve Sidellia, and you can withdraw it anytime.
Essential technical cookies
We use a technical security cookie (cas_csrf), strictly necessary to protect forms against request forgery. It does not identify users or track your browsing.
If you also sign in with your email, our authentication provider (Supabase Auth) sets another technical cookie to remember your session, also strictly necessary, expiring when you sign out or after a period of inactivity.
Beyond these essential cookies, we only set an analytics cookie if you accept usage measurement, and you can withdraw that consent anytime.
How to disable
You can block or delete cookies from your browser settings. If you block the essential cookie, sign-in will not work, but you can still compute natal charts (that happens client-side, without cookies).
No advertising trackers
We do not embed social network widgets, "like" buttons, or advertising pixels. Images and fonts are served from our own servers. Usage analytics measures in aggregate and is never used for advertising or to follow you across sites; without your consent it sets no cookies and does not identify you.