During today's annual stockholders meeting, Apple CEO Tim Cook revealed that 40 billion iMessages and 15 to 20 million FaceTime calls are made daily. That number suggests iMessage has grown exponentially over the course of the last year as usage numbers were at two billion messages per day in January of 2013. As of mid–2013, Apple had 320 million iCloud accounts with 900 billion iMessages sent, a number that would be significantly higher today, taking into account 40 billion iMessages a day. In comparison, popular messaging service WhatsApp, which was just p
