You can download the app directly on your Android device through the Google Play Store or by using the link which follows:
The Comics for Android (3.0.7.9) update has the following features and improvements
- This update fixes issues with purchasing or downloaded previously purchased titles.
- If any of your recently purchased books are still having troubles, signing out and then back into the app will sync things together.
- If you are not currently experiencing any issues then we recommend holding off on this update for bit.
You can also download Comics by ComiXology for iOS