Rob wild

Hi Folks Just wondered if someone could offer me some advice I've got a link g4+ plug in on a R32 GTR. I really want some output and was looking at the Toucan as its does cal switching and gauges. I rather do this with a iPhone or tablet but there doesn't seem to be an easy way to do it and the App would only output not cal switch. ideally I like something that displayed gauges, cal switch, traction control switch etc. What would do this the best? thanks for any advice