Pretty sure satcomer is referring to the wifi icon on the toolbar on a Mac. You mentioned iOS...so while the option trick works, to see the details of a wifi connection on a Mac, it is not the platform you mentioned.
After doing some testing, I have to agree, that wifi sweetspots looks pretty promising for finding...well, sweet spots. It really depends on what you want to view/monitor though. wifi man is pretty solid to map out devices and check their particulars.