The Marvel Unlimited subscription service is accessed by streaming the comic content from the internet.
With the Marvel Unlimited app, you can select up to 12 issues to read offline. These issues will be downloaded to your mobile device so that you can read them without an internet connection.
To download a comic for offline reading, tap the comic cover to open the comic detail page, then tap the "Read Offline" button in iOS or the "Download" button in Android. That comic will be downloaded to your device. You will be able to see all your comics for offline reading in the "My Library" section on your mobile app for iOS and the "Downloads" section for Android.
You may choose up to 12 comics at a time to read offline. Reached your max? Don't worry — you can always delete comics you've already read by selecting those comics and toggling to remove them. Once you've deleted comics from your read offline queue, you can add more issues.