Number of Applications in Apple’s App Store and Google’s Android Market (July’08 – Nov’11)[141-156]. This figure presents the growth rate of two major smartphone application stores: Apples’s App Store and Google’s Android Market, during the period of July, 2008 to November 2011. Both of the stores are growing very fast. According to the most recent updates, the total number of applications in Apple’s App Store is more than 425,000 as of July, 2011  and in Android Market is more than 352,800 as of November, 2011 . Overall, the Apple’s App Store is currently leading in terms of the application store size; however, the growth rate is much slower than Android Market.
Mosa et al. BMC Medical Informatics and Decision Making 2012 12:67 doi:10.1186/1472-6947-12-67