I've had this issue since iOS 8.3, and was hoping it was finally fixed in iOS 9.0. The app store keeps thinking that apps need updates. The badge won't go away, and the updates page won't delist the 'updates' despite the apps already being completely up-to-date via iTunes. I've tried and failed to at least find a way to disable the badge on the app store icon, so I no longer notice the defect. Anyone have this same problem, know what the cause is, or how to fix it?