This app is very good and very useful it has great concept now a days this app is in every smartphone By this app you can send messages to your contact also you can send images videos pdf songs etc to your contact On this app you can creat groups you can participate in any group This app has great features like calling video calling etc It has good layout and design it is simple to use It has good features By this app you can call you can send messages to so many by web broadcasting This app is free for long time This app is very useful I trust this app 100% and I am 100% reliable on this application