reaver is described as 'Reaver implements a brute force attack against Wifi Protected Setup (WPS) registrar PINs in order to recover WPA/WPA2 passphrases. Reaver has been designed to be a robust and practical attack against WPS, and has been tested against a wide variety of access points and WPS' and is an app in the network & admin category. There are more than 10 alternatives to reaver for a variety of platforms, including Linux, Mac, Windows, iPad and Android apps. The best reaver alternative is Aircrack-ng, which is both free and Open Source. Other great apps like reaver are NetSpot, Wifite, Kismet and Fern Wifi Cracker.
Its GUI and supports more features