Xcode 4 has been streamlined to help you write better apps. Xcode provides everything developers need to create great applications for Mac, iPhone, and iPad. Some features may require Internet access. To submit your Mac or iOS apps to the App Store you must be a member of the Mac or iOS Developer Program. To test or deploy applications on an iOS device you must be a member of Apple's iOS Developer Program. Monitor your app directly, or sample the entire system, with very little overhead.Identify performance bottlenecks then dive deep into the code to uncover the cause.Compare CPU, disk, memory, and OpenGL performance as graphical tracks over time.Instruments for visual performance analysis Code completion for Objective-C, C, and C++ is incredibly fast and accurate.Fix-it can confidently correct mistakes for you with just a keystroke.Live Issues underlines coding mistakes as you type with no need to build first.Analyzer travels countless code paths looking for logical errors before they become bugs.
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