hashcat - The World's Fastest CPU/GPU powered password cracker.
inSSIDer - inSSIDer Essential makes it easy to maintain small business WiFi.
CrackStation - CrackStation is a web-based service that is used for retrieving passwords by cracking their hashes.
Wi-Fi Space - Hotspot location app
Password Cracker - Password Cracker is a software for Windows that is used for recovering forgotten passwords for different software and websites that you use from the browser.
Lizard Systems WiFi Scanner - Lizard Systems WiFi Scanner is a multi purpose WiFi scanner and WiFi troubleshooting tool designed for dealing with all WiFi related issues conveniently.