1
Open the portal in Safari
The link only works in Safari on iPhone — not Chrome, not in-app browsers. If you're not sure, tap and hold the link and choose Open in Safari.
2
Tap the Share button
It's the square with an arrow pointing up, at the bottom of the screen (or top right on iPad).
3
Tap "Add to Home Screen"
Scroll down in the share sheet — it's about halfway down the list. The icon looks like a square with a plus inside.
4
Tap "Add" in the top right
You can rename the app first if you want, then tap Add. The icon appears on your home screen.
5
Open it from your home screen
Tap the new icon. It launches full-screen with no browser UI. Treat it like a regular app.
Heads up: Apple doesn't let websites add themselves to your home screen automatically. You have to do steps 2–4 yourself, but only once per device.
On Android? Use Chrome's "Install app" or "Add to Home screen" menu — same idea.