FYI, I have contacted the developer of the App after I had purchased it. I have an LG G2 and it does not work! Ironic that an LG phone doesn't work with an LG TV.
Originally Posted by Mick Armo
In my situation, the app was of no value at all as the UB950T can only enter the Service Menu via IR and not WiFi.
For anyone in the same situation, which is pretty specific, you will encounter an issue after entering the service mode as you need to enter in the service mode digits which I couldnt do with the remote that came with the TV (no numeric keypad on the remote, only smart remote).
To over come this issue of numeric key entry for the service menu, I used the 'Quick Remote' app built in to the LG G2 and added my TV first. Once configured, I used the homebrew iR remote I made to activate the service menu, then continued using the 'Quick Remote' to enter in the numeric values and navigate the service menu.
It is a bit cumbersome, but it works if you have the LG G2 and nothing else available.
UPDATE: Borrowed friends Samsung S4 and app works perfectly. No need for homebrew IR.