Wireless WEP Key Password Spy - Wireless WEP Key Password Spy will instantly recover all WEP keys and wireless network passwords...
inSSIDer - inSSIDer Essential makes it easy to maintain small business WiFi.
Aircrack-ng - Aircrack-ng is an 802.
NetStumbler - Official source of information about Netstumbler.
WifiInfoView - Scans wireless networks in your area and displays extensive information, including: SSID, MAC Address, PHY Type (802.11g or 802.11n), RSSI, Signal Quality, Frequency, Channel Number, and more...
NetSpot - NetSpot is a free app for wireless site surveys, Wi-Fi analysis, and troubleshooting