If you own an entry-level to midrange Sony Xperia phone, the new Android 4.4.2 KitKat update for Xperia comes bundled with the ability to save apps in your microSD card. This will allow you to download more apps or free up some space in your internal storage. You just need to head to your Settings app and under the Apps option, tap on the app you want to move and select “Move to SD card.” The option isn’t available for all apps and some apps may require you to store some data on the device. The update is now available for the Xperia T2 Ultra and Xperia T2 Ultra Dual and will be coming to the Xperia E1 and Xperia M2 soon.
Source: Cult of Android