Aircrack-ng - Aircrack-ng is an 802.
Ekahau HeatMapper - The Free Wi-Fi Coverage Mapping Site Survey Tool
Kismet - Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system.
Waircut - Free network audit app
Wifite - To attack multiple WEP, WPA, and WPS encrypted networks in a row.
iBwave Wi-Fi - iBwave Wi-Fi software suite brings smart networking solutions to enterprise, education, hospitality, transportation, retail, office, healthcare, public venues, and residential wireless networks.