I think I just have bought old stock as the stand-alone version of this software doesn't seem to be listed any more - you now get an e-lunk box which negates the need for the Elite but only comes with a 1 amp power supply. Suits me, as I have an Elite controller already. Impressed by the fact that it will recognise and "adopt" all your existing programmed locos - I had visions of having to programme them all over again. Bought myself a signal/point module too do I'm looking forward to adding that in. Love the idea of building a diagram of my layout on screen and controlling the layout from my PC. Pity the PC isn't touch-screen! The Elite controller still works as an override if you want. Haven't tried the Android app yet. You have to buy and download this from Hornby.