WhatsApp CEO Jan Koum announced Monday that the cross-platform mobile-messaging app now has 430 million active users. That's up from 200 million in April 2013, which means its user base has more than doubled in less than a year.
The number of messages sent and received via WhatsApp has increased, as well, from 20 billion per day to 50 billion per day.
Private messaging is becoming increasingly popular of late, especially for social networks such as Twitter, Facebook, Instagram and Snapchat — and yet, it seems WhatsApp continues to hold its own.
Time = Active users
April 2013 = 200m
Agust 2013 = 300m
January 2014 = 430m
Image: MARGARETHE WICHERT/ASSOCIATED PRESS