Privacy
This is a static site. Your study record stays on this device.
What is stored
Lesson checkmarks, theme (light or dark), and a locale-banner dismissal live in localStorage. They never leave the browser. Clearing site data forgets them. There is no login.
What is not collected
No advertising, no analytics pixels, no third-party fonts or scripts that phone home. Contact mail is hello@esperantogo.com if you write to us; that is ordinary email, not tracking.