Android
LDS Android applications are available in the Google Play Store, the Amazon Appstore (for Kindle devices), and NOOK Apps (for older NOOK devices). If you need information on Android application sideloading, you can find it on the LDS Tech Wiki.
Blackberry
The Church offers three apps for BlackBerry: Gospel Library, Mormon Channel, and LDS Tools.
iOS
Available for iPhone, iPad, and iPod Touch.
JavaME
Feature phones, Simbian phones, and many others support Java Mobile Edition applications. Some use just the jar file and some need the jad file. See the Gospel Library for JavaME page for more information.
For more information go to the LDS Mobile Apps page.