In order to use the app to control all your LightwaveRF devices, you must have the Lightwave Link (LW930).
Connect the Link directly into your internet router till the unit goes into a solid green state.
Now Download the LightwaveRF app on your iOS or Android device.
Press on Sign up, Insert your details and the last 6 characters of the MAC address (can be found on the base of your link), Hit Register and follow the instruction on the app till your Lightwave Link starts flashing green. Now hit the big button on your link and hit the green tick on top right hand corner of the page.
Now you need to create your Rooms, and add devices within the Rooms.