Straight up useful and well made

The Apple wifi widget is laughably useless. Yeah, it’ll tell you the basic strength of your signal, but if you want to really know, just get this app. It hangs out in your menubar and gives you both a better view of your wifi signal, and an impressive little display of details, including signal over time, and SNR (noise floor) or percentage views. Everything you could want in an extremely needed tool for this age of ubiquituous wifi!

trisweb1 about WiFi Signal: Strength Analyzer