My unit is the LG L90 with kitkat
So far none of the APPS that I have installed works after moving them to the SD Card. With few rare exception must of the apps that I'm using (even when you can set the SD Card directory manually) can not save general data (settings, profile,etc), to the SD Card, same thing with data files (documents, videos, music, etc.), you have to create or download the documents to your ROM and then move them manually to the SD Card.
There are some apps where I have downloaded the .APK, then I saved that file on my SD Card and since they get installed and uninstalled relatively quickly I do the install/uninstall of the APP as needed in order to have the largest space available in ROM.
I think that the problem reside in the OS version Kitkat does not allow it. But if you are using Jellybean you should be capable at least to tell the app to save document in the SD card. But I have never used Jellybean so wait for other in the forum to respond more properly.