Every week, sister iOS games site FingerGaming rounds up the top-grossing iPhone, iPod Touch and iPad games, as current that day in the iTunes App Store, and this chart is now available on Gamasutra.
This week's U.S. revenue charts see Tap Zoo and Angry Birds Rio earning top iPhone sales, while Contract Killer and Tiger Woods PGA Tour 12 emerge as big sellers on the iPad.
These charts allow end users to see who is making the most money on the App Store that day. It differs significantly from the Top 10 game sales chart, which is dominated by lower-priced titles that sell more copies.
Data comes courtesy of Apple's public sales information. All titles in the App Store's "Games" category are considered in chart rankings.
This week's top-grossing iPhone and iPod Touch games are:
Pocket Gems earns the top spot in today's chart with a rush of Tap Zoo microtransaction sales following a recent update. Angry Birds Rio drops to second place, as Angry Birds remains a steady seller at third.
Words With Friends and Tiny Wings also report continued sales success, while the remainder of this week's chart consists of free-to-play releases from the likes of Capcom, TeamLava, and The Playforge.