I have a PC program called Ekahau heatmapper. You run the program on your laptop and then walk around a room that has wifi. It will show you what spots in the room have the highest (or lowest) wifi signal. Is there a similar app for ipad that does the same thing. I have searched and found wifi finders, but none show differences in signal strength as you move around. I am setting up some offices and want to be able to tell where in the office is the strongest wifi signal.