This document compares app stores and apps across Apple platforms (iPhone, iPad, Mac) in February 2011. It finds that the Mac App Store had fewer apps (2,225) than the iPad store two months post-launch, but the average price of top Mac apps ($11.21) was higher than for iPad ($4.19) and iPhone ($1.57). Games were a large category for all platforms, though less so for Mac (29% of apps versus over 50% for iPad). 173 publishers had apps in the top 300 of multiple Apple stores, with more cross-over between Mac and iPad than Mac and iPhone stores.