Facebook Messenger is one of the best social networking application. Available for windows, android, and i-phone etc. we can use this application for connecting with our facebook friends. we can chat, audio and video call etc. we can send or receive picture with the help of internet. We can find our chat without opening our profile. this application is work on all the android phones and windows. It not requires any browser. It is available total free of cast. Its design and feature are too good. it is very easy to use.