I have used whatsapp from 2015. I like this app initially for being contact based communication. No one can find me without having my phone no. That protect my privacy.
It is very easy to use.Ont only I but aslo my parents like and use this app. My mom use it to connect relatives through phone call and vedio call facility. And my father widely use this app for his business. Vedio, audio, image can be sent easily by it.
When we want to sent any large size file then first it is compressed and converted into small sized one and then sent so that it consumes less data. Many students als use group facilities through this app and in which any one sends notes and many valuable information and other member of this group can receive. That facility avoids individual sending and saves our time.
