The Whats app is the best application for now days. Today is globalization day where we connect see and each other form everywhere, no matter where we are and where they are also. So on these day the Whats app is fully success and positively processed way. For it we can connect each other any time in any where, it only required a internet connection which is generally have to every people. Here connection are four type Massage, Voice massage, Voice calling and Video calling.
In the massage connection, we can connect each other through text massage on whats app. It make a conversation of our speech where our massage are showed one by one with time. and also it see sending marks and seeing marks; where form we can know the massage status.
In the voice massage connection, We can record our voice and sent it to another which we want to send. Its also make and see same conversation and status of the voice massage by marks.
In the voice calling connection, we can call our contacts through whats app. Where we no need any balance and voice packs. Only internet connection is required.
In the video calling connection, which is most featured we can call our contact through whats app where we can show the person and he also see us. In the system only internet connection is required.
So; Guys I cannot find any disadvantage in these app so if you like than you can use it.