I have been using this app since 2011. when I have a nokia smartphone called nokia X2-01 it is the beginning of the whatsapp which they have less users and not all people know about the whatsapp. but it was very fast instant message service. I have only 2 or 3 peoples in my favourite. from then I have been watching that its been the part of our lives. everybody have this app. now the app become very interesting \with its features: Like Status, Video Call, Audio Calls, you can send documents GIF, it became more interesting app than others and I Love that. it is not just the app but part of our live.