Who don’t know the WhatsApp, still want to review it. WhatsApp is a world’s largest cross platform massaging and voice over IP service currently owned by Facebook.
App allows user to send text massage, voice calls, Vedio call, send documents, pictures and multimedia file and even users location.
It is available on almost all the operating systems like Android, I OS and etc.
Most important thing is its totally free and can be downloaded from Google play store and I store for Apple users.
It has all the features in single app.
Unfortunately it is not an indian app, but still recommend you all who are not using it.use it.