Hello,
I would just like to clarify that the Free version of iVera will only allow you to see two (2) lights (dimmer or switch) and two (2) scenes. It is then expected that Thermostats, Sensors, Cameras, ... will not show up with this version.
Apple didn't allow to simply list a device if you couldn't control it in the Free version. The Full version will give you access to all your devices.