source url Every day are traded on WhatsApp: 50 Millions of messages.
WhatsApp, then, is the number 1 chat for mobile phones with 600 million monthly active users.
The current competitors of WhatsApp are: Line, Kik, BBM (BlackBerry Messenger) and Viber.
Facebook has spent 19 billion dollars to buy the chat app for mobile: WhatsApp,
while Google’s previous offer was “only” 10 billion dollars.