WhatsApp messenging is a free chatting app available for android and other smartphones.
Send and recieve photos, videos, documents, and voice messages.
Call your friends, family free with whatsApp calling feature.
WhatsApp does not work in only fast net as 3g or 4g net it also works in 2g net or even with wifi.
WhatsApp is downloaded by 1 billion people.And the number of downloads are increasing and increasing.
WhatsApp is a very easy chatting app, even a old age person is use whatsApp without any problem.
WhatsApp is a awesome app, and my favourite app also.