Cookie Policy

Opalis uses a small number of cookies and browser storage keys, and this page names every one of them.

It distinguishes the strictly necessary ones — sign-in, your theme, keeping the app usable offline — from the optional analytics ones, which are off until you turn them on and can be changed at any time from the cookie preferences link in the footer.

The full text is on this page. Questions about it go to support@opalis.app, and students can request deletion of their own data from inside the app.