WhatsApp just announced that its messaging app is now used by 500 million people around the world. And those are all described as “regular, activeusers, another sign of the company’s soaring growth — and the loyalty of its community. When Facebook announced plans to acquire WhatsApp in February, the service had already crossed 450 million active users, so it’s quickly jumped by tens of millions since then. The fastest recent growth has occurred in Brazil, India, Mexico, and Russia, according to WhatsApp.

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