Appsfire Infographic shared figures for the iOS App Store in 2012.

• The growth in the amount of apps, while still high, seems to be slowing. This might indicate that the market is maturing.
• Only 1 in 10 apps gets any reasonable traction at all. Only 1 in 1000 manages to get to the top 10 of the App Store. For non-games, only 1 in 1690 reaches the top.
• The percentage of paid apps has dropped dramatically.