learn·by·visualization
📱 Take it with you
This site is the app — no store, no account, nothing to download twice.
Scan a code with your phone camera, open the link, then add it to your home screen.
It launches full-screen like a native app, and every explainer keeps working offline.
Install it as an app
iPhone / iPad (Safari)
- Scan a code above and open the link in Safari.
- Tap the Share button (the square with the up-arrow).
- Scroll and tap Add to Home Screen, then Add.
Android (Chrome)
- Scan a code above and open the link in Chrome.
- Tap the ⋮ menu (or the install banner if it appears).
- Tap Install app (older versions: Add to Home screen).
Works offline. Once installed, pages you've visited are cached on your
device — the explainers, quizzes and 3-D scenes run entirely in your browser, so a dead spot on
the train doesn't stop a study session. Your progress lives on your device too: no account, no
trackers, free forever.