From my understanding, while the Galaxy S4 does offer a memory card slot, it's worth mentioning that you can't install apps on the memory card and can only use it for storing movies, music, pictures, etc.
So, is this a problem with the Android 4 OS not capable of allowing phone user to install or move apps to the SD card?
or
is it that the phone manufacturer are not capable of producing a phone that allow user to use the SD card slot given that the limited space for a 16 GB Samsung Galaxy S4?