WhatsApp hits 2 billion users, up from 1.5 billion 2 years ago

WhatsApp,the most popular messaging app, revealed today just how big it has become. The Facebook -owned app said it has amassed two billion users, up from 1.5 billion it revealed two years ago. It also remains free of ads and does not charge its users any fee.
The announcement today makes WhatsApp only the second app from Facebook to join the two-billion-users club. (Facebook’s marquee app has 2.5 billion users.) In an earnings call in late January, Facebook also noted that that there