WhatsApp now has 800 million monthly active users, continuing a pace of growth that may put the mobile messaging app on track to hit one billion users later this year.
Jan Koum, the CEO and co-founder of WhatsApp, revealed the numbers on his Facebook page late Friday. The app, which Facebook bought last year for $22 billion, has added 100 million active monthly users roughly every four months since August, when it had 600 million users. In January, WhatsApp announced that it reached 700 million.
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