Mobile messaging service WhatsApp is now used by a billion people every month, Facebook has reported.The Facebook-owned app now outperforms the social network’s own Messenger mobile app, which has 800 million monthly users.The company said 42 billion messages and 250 million videos were sent over WhatsApp daily.
http://www.bbc.com/news/technology-35459812Also see:WhatsApp and Gmail join the 1 billion user club
Facebook’s WhatsApp messenger and Google’s Gmail have both crossed the 1 billion monthly active user milestone, meaning that one-seventh of the world’s population now uses them both.The two apps join Facebook’s 1.59 billion monthly active users (MAU), as well as Google’s other 1 billion or more MAU services: Google search, Chrome (both mobile and desktop), Google Maps, YouTube, Google’s Android and therefore also Google Play.
http://www.theguardian.com/technology/2016/feb/02/whatsapp-gmail-google-facebook-user-app