On this list another service has been added, which is introduce by search giants Google. Google had released its messaging app called "Messenger" for android platform. This new app comes with the Google latest Material Design interface which gives a smooth and cool looks. Messenger supports devices running Android 4.1, Jelly Bean, and above.
Google another chatting and video calling service Google Hangouts is still there and even of that Google introduced its messaging app. We think that Google took this steps for its mobile users as there are many users who are not able to use Hangout features and Google still want to connect its users via a mobile device.
This would be interesting to see how Google manages its both Hangouts and Messenger service. As recently announced that its messenger service reaches 500 millions month users. This would be tough competition for Google but hope Google gains much attraction with its messenger service.
You can download the Google Messenger app from Play Store.