Instant messaging client WhatsApp has joined the one billion user club. Facebook CEO Mark Zuckerberg recently revealed the milestone on the social network, congratulating co-founders Brian Acton and Jan Koum on the achievement.
If you recall, Facebook acquired the mobile messaging app for $19 billion nearly two years ago. Since that time, Zuckerberg said the community has more than doubled with 42 billion messages, 1.6 billion photos and 250 million videos being exchanged each day.
