72% of iPhone app revenue comes from in-app purchases, up from 28% in 2010
Downloads of free apps up by 34% since 2010
Specifically he revealed that the growth of free app downloads from the iPhone App Store has grow 34 percent since 2010, whie paid application downloads have grown by 7 percent. These figures were taken from the top 300 downloads in each category.
Further pushing the freemium format is the fact that, despite only 4 percent of apps on the App Store allowing in-app purchasing - apparently - 72 percent of revenue comes from apps featuring the method.
This 24 percent of revenue was attained via paid apps with in-app purchasing while 48 percent was attained through free apps with in app purchasing. The remaining 28 percent was attained through paid apps.
The figure of 72 percent represents a large rise from this time last year, when a mere 28 percent of revenue was attained through in-app sales.
The presentation also iterated that, even though Android had only started to allow in-app purchases in March 2011, in the US in August, 68 percent of the 25 most grossing apps were utilising the service.