https://thenextweb.com/apps/2020/02/12/whatsapp-now-has-more-than-2-billion-users/

WhatsApp announced today it has crossed the mark of 2 billion users today. It’s the second Facebook-owned service to achieve that milestone after the social network got to that number in 2017.

The mobile messaging app was initially released in 2009, and was acquired by Facebook in 2014 for a whopping $19 billion. In 2017, it reached the mark of 1 billion active users.