In addition, highly grossing applications in Books and Newsstand categories also tended to be free applications to start.
However, the average price of the 100 top grossing applications is higher on the Apple App Store for iPhone.
Navigation applications are by far the most expensive catgeory of applications in the UK but games also do well in terms of the top grossing applications.
For example, in China only 34% of the revenue from the 200 top grossing applications originates from applications that feature in-app purchase.
No one knows exactly how Apple's algorithm works, other than it takes into account some combination of downloads and velocity – or for Top Grossing applications, revenue.
For example, on Sep 18, there were 10 games and 5 navigation apps among the top 20 highest grossing applications in the UK.
Distimo also examined the top 250 grossing applications last month, again those released since last January, and estimated downloads and revenue to determine the app store metric known as ARPD, or "average revenue per download".
CEO Daniel Terry says that each of the company's games have been in Apple's top ten charts (which is no small feat), and that it currently has two of the App Store's top-25 grossing applications (Tap Zoo and a holiday themed version of the game called Tap Zoo: Christmas).
Apple has made a significant change to the "Top Charts" section in the iOS App Store just ahead of its Worldwide Developers Conference next week in San Francisco – it's now only featuring the Top 150 Paid, Free and Top Grossing applications, where before it was featuring the Top 300 on iPhone, and Top 1,500 on iPad.
Since launching in February of this year, our own Whitepages Caller ID app has become a top ten grossing Android application, and yet we've seen less than $54,000 in revenue.
There is no doubt as to the current usefulness and future applications of gross digital photography in the pathology lab.
