Facebook Messenger 220.127.116.11.274 of the mostly popular and the best applications for android-os is unfetter and easy, you can chat together your Facebook friends pay upon account of Facebook have self-management.
Features Facebook Messenger:
Ability to add photos to messages and place
Create groups of friends
Send SMS to mobile friends (only available in some countries)
Online access to friends or not (by sending them text and text-to-mobile)
Keep track of who has and who has not seen your message!
Keep track of where your friends have sites
To see friends typing simultaneously
Ability to switch between different conversations quickly
Adding friends of friends of friends of friends to the program
Adds the ability to share photos together full screen and zoom larger pictures
Improve the speed in sending, opening and go hither and beyond