Two billion makes Facebook the largest social app in terms of logged-in users.

[Read original article Tech Crunch/ Josh Constine,  https://techcrunch.com/2017/06/27/facebook-2-billion-users/]

Following Facebook is YouTube’s 1.5 billion, WeChat’s 889 million, Twitter’s 328 million and Snapchat’s estimated 255 million (extrapolated from its December 2015 ratio when it had 110 million daily and 170 million monthly users). Beyond YouTube, only Facebook’s other apps have more than 1 billion, including WhatsApp and Facebook Messenger, with 1.2 billion each. Instagram might soon join that club as it recently rocketed past 700 million.

Facebook’s growth the last half decade has been fueled by the developing world. The company has relentlessly optimized its app for cheap Android smartphones and low-bandwidth connections. It’s added 746 million users in Asia and the Rest of World region since hitting 1 billion users total. Meanwhile, it only added 41 million in the U.S. and Canada.

Despite Facebook’s size and age, at 17 percent its user count is growing as fast or faster than any year since 2012. And people aren’t using it less either. In fact, 66 percent of Facebook’s monthly users return each day now compared to 55 percent when it hit 1 billion. If the teenaged social network isn’t as cool to teenagers any more, it’s not showing in the big metrics.