Apple iOS App Store for iPhone, iPod touch and iPad has unofficially just passed 500,000 Approved Apps mark. Apple has reached this mark in span of three years. The actual number of apps available for downloads in App Store are closer to 400,000. This news came courtesy of Chomp.com, 148apps.biz and EA-owned games publisher Chillingo. In honor to announce the milestone reached by Apple App Store, the above app-centric companies combined to announce the news, creating a very detailed infographic in the process. The infographic shows the Top Apps of App Store and showing the growth of Apps in the last three years and combined costs of apps currently available on the store.