Only days after the video of surf star Mick Fanning having a close encounter with a shark was watched by over 18 million people, the public interest in sharks moved onto the iPhone app by Ocearch, Shark Tracker. The app allows the user to track up to the past two years of activity for over 120 sharks all over the world. You can look at where each shark last sent a ‘ping’, which occurs only when the shark surfaces for more than 90 seconds, or you can choose an individual shark and track it’s journey over the past month to two years. They also use the technology to alert beaches when they believe one of the more dangerous sharks is too close for comfort to the shore.

All the sharks have a small profile on the app, and also the live Ocearch website, which tells you their species, gender…