Apple HealthKit is DOA: Apps forced to stop using feature due to iOS 8 bug

Apple has confirmed a bug in its new iOS 8 has meant users cannot automatically sync their health data to the firm's new Health app. The Health app is designed to allow users to easily see in one place all their health related data, and to share it with doctors, and works with a new software service called HealthKit. HealthKit is not an app but a back-end framework that allows third-party apps to sync with Apple's new and proprietary health tracking app, Health. Apple senior vice president of Software Engineering Craig Federighi speaks about the Apple HealthKit app at the Apple Worldwide Developers Conference in San Francisco in June, when it was first revealed.