To log out of the app:
- Tap the 'Help' icon on the far right of the bottom of the screen.
- Tap the 'Logout' button.
Please note that, once logged out, you'll need an Internet connection (Wi-Fi or mobile data) to log back in and to download files. However, if you leave the app logged in, you can view the list of your purchased titles and read or play any files you've already downloaded even when you can't connect to the Internet (such as while in 'airplane mode' on a flight).