More than 50 percent of applications are priced below or equal to $2.00 in all stores, with the exception of BlackBerry App World and Windows Marketplace for Mobile, says Distimo.

The average price of all paid applications and the 100 most popular paid applications in the Apple App Store for iPad ($4.65) is higher than in the Apple App Store for iPhone ($4.01).

Google Android Market has the largest share of free applications (57 percent) and Windows Marketplace for Mobile has the smallest (22 percent).