On a laptop, the cloud icon in the toolbar is Read offline. On a phone or tablet the same rows are at the foot of Reading tools.
Download the guide
Nothing downloads on its own. The row shows the size first — including narration where you have it — and waits for you.
Choose Download for offline and it counts through the chapters ("Downloading… 4 of 12"), with Cancel download beside it. When it finishes the row reads Available offline with the size it took, and offers Remove download.
A downloaded guide reads exactly as normal with no connection, highlights and notes included — they queue and sync the moment you are back online.
A guide you have not downloaded needs a connection. Reading a chapter does not quietly cache it.
Downloads are per device, and the guide download is free on the trial.
The rest of your studying
Flashcards download themselves the first time you open Flashcards while online — for everyone, trial included. Practice questions do the same with a paid pass. So open Flashcards and Tests once on wi-fi before a flight.
Ask Miles needs a connection, always. Its answers are generated, so there is nothing to store.
Add it to your home screen
The same menu has a Use offline section with Install app where your browser supports it.
iPhone / iPad (Safari): tap Share, then Add to Home Screen. You sign in once inside it.
Android / desktop: choose Install app (or Add to Home Screen).
It opens full-screen from your home screen and keeps you signed in.
The badge in the toolbar
When you are offline, or when changes are still syncing, a small badge says so. If it ever reads Couldn't save — retrying, keep the tab open until it clears.
If something is not working, see "Offline isn't working".
