Hack Wifi Password is an application that will try to guess the password of any WiFi network in your vicinity. This 'hacking' process is pretty rudimentary, though, and usually doesn't work.
How does it work? Easy. Hack Wifi Password guesses common WiFi passwords one by one – drawing these guesses from the 500 most popular WiFi passwords in the world – until it finds one that works. If the WiFi network password doesn't match any of these guesses, nothing happens, except that you'll have wasted a lot of time.
The first guesses are, of course, the most common ones: 'password,' 'pass,' '123456,' '1234,' and so on. Luckily, not many people still use these passwords on their WiFi networks.
Hack Wifi Password is a mediocre hacking application that often isn't successful. Nevertheless, it's an option, and it might work from time to time.