Apple has approved more than half a million apps for its mobile platform iOS, according to iOS app developing companies. The feat is still unofficial as Apple has not officially announced it yet.

To mark this achievement, companies specializing in iOS apps have created an infographic — showing some interesting figures related to iOS applications: Angry Birds is the most popular app, 37% iOS apps are free and there are 85,569 unique app developers of this platform. Find out more in the infographic (below).

Note: Open the image in a new tab for higher resolution.

ios 500,000 apps[via mashable]