Of all the WiFi apps I have tried so far, this is the one that I use the most. The multi-view UI is particularly well done - offering a number of different way of presenting local WiFi useage - which often can be compex and difficult to understand. I also like the large analgue meter style signl strength meter which allows the user to wander around mapping signal strength in different locations. This view also has an audio 'signal strength to frequency' beeping function which allows the user to monitor received signal levels without having to physically look at the meter at all times. The ads that support this FREE app are not to intrusive and can be switched off through the user settings.