WhatsApp has more than 450 million active users, and reached that number faster than any other company in history. It was just nine months ago that WhatsApp announced 200 million active users, which was already more than Twitter. Every day, more than a million people install the app and start chatting, and they remain more engaged with WhatsApp than on any other service. Incredibly, the number of daily active users of WhatsApp (compared to those who log in every month) has climbed to 72%. In contrast the industry standard is between 10% and 20%, and only a handful of companies top 50%.