QGallery is an application for sharing the photos that you have taken on your phone, in your tablet. The app uses QPair SDK by LG in order to send from the phone to the tablet.
It uses Wifi Direct to send the files. Since Wifi direct doesn't always work well, the app may not work with your phone. Tested on: G pad 8.3 on 4.4.2 pair with G3 D855 on 5.0 G pad 8.3 on 4.4.2 pair with Note 3 N9005 on 4.4.2