The document provides information on application prices and popularity from the Apple App Store worldwide between December 2009 and February 2010. It finds that the most expensive popular applications on average are in Europe, while the cheapest are in North America and Asia, though currency conversion may impact prices. Overall popular application prices decreased 15% on average globally during this period. The largest price drop occurred in Australia, where prices fell 27%. Games are the most popular category in Australia and North America, making up 51% and 39% respectively of top apps in those regions. Navigation apps have the highest prices and most variation between regions, especially in Europe.