The mobile app keeps track of reading - even while the student offline. Usage will sync with the student's account in myON as soon as the app is opened once the mobile device has an internet connection. The usage will be stored through the app indefinitely until it is synced with the cloud when an internet connection is available.
You cannot read a book until you are logged in to a myON account. Even if you are offline, you will be prompted to log in. (This is how myON knows whose account to attribute the usage to.)
The key is that the mobile device does have to be connected to the internet in order for the usage to sync. So, although students will never receive a quiz or benchmark test through the app, the usage itself does sync to the student’s account in myON.
For more information on how to get the myON app, click here.