With more than 300,000 programs in Apple’s App Store, keeping tabs on all of them can be quite a chore for an iPad owner. Maybe what you need is an app to manage your app knowledge. Sure, the App Store itself offers some navigational and evaluation aids for folks browsing for apps. There’s a Featured section that displays Apple’s picks for the game and app of the week, as well as “new and noteworthy” and “staff favorites” apps, and a Genius section that recommends apps to you based on apps you’ve downloaded in the past.