From WiFi Scanner:
WiFi Scanner is a free 802.11 wireless scanner and connection manager for Mac OS X 10.6 Snow Leopard or later. This will detect access points and clients in ad-hoc mode if the SSID is being broadcasted. It can be used for wireless site surveys, wireless discovery, and to connect to wifi networks. The tool reports signal strength in dBm and shows access point BSSID/MAC addresses.
While I understand the desire of the developers to get some money for their work, $9.99 is way to costly for a utility I may want a couple of times a year. If revenue is that important (and looking at their web site, this app looks like it would be a miniscule revenue contributor) then I would prefer to see it ad supported. As an alternative, the publisher could advertise their corporate services and consider free distribution of the app as a marketing expense.
If anyone from the company reads this, Kudos for your work in the humanitarian sphere.
Crashes if not already connected to a wireless channel.
At home I was able to find a channel conflict and move my wireless access points to channels 11 and 3 (Channels 1 and 6 were already in use by neighbors and 6 was thrice over subscribed).
At work, I could not connect and the tool ungracefully died. After connection to an internet connection the tool came up. I don't see the need for for the programmer to require an active internet connection because the user might use this tool to diagnose failing internet connections. Because of the (obvious to me) crash and internet connection rating 3 instead of 4 stars.
The display is bare bones, but gives me all the information that I need (for the non-hidden networks anyway, I had no hidden networks I cared about). A new user may not have the capacity to understand, but any technically confident user will quickly get the information needed.
Frequent updates and the ability to identify locations (although not terribly accurate).
Not very good at pinpointing wi fi locations.
This application does more to provide useful information than any other product yet used by this reviewer. Although not perfect, it seems to find transmissions quickly and gives a good indicator of strength, plus the usual information such as type of security used. Not suitable for hackers trying to break into networks, rather enables curious people to better understand coverage in the area where they are located.