Cocoa (OS X) vs Xcode: What are the differences?
Cocoa (OS X): The Cocoa frameworks consist of libraries, APIs, and runtimes that form the development layer for all of OS X. Much of Cocoa is implemented in Objective-C, an object-oriented language that is compiled to run at incredible speed, yet employs a truly dynamic runtime making it uniquely flexible. Because Objective-C is a superset of C, it is easy to mix C and even C++ into your Cocoa applications; Xcode: The complete toolset for building great apps. The Xcode IDE is at the center of the Apple development experience. Tightly integrated with the Cocoa and Cocoa Touch frameworks, Xcode is an incredibly productive environment for building amazing apps for Mac, iPhone, and iPad.
Cocoa (OS X) can be classified as a tool in the "Frameworks (Full Stack)" category, while Xcode is grouped under "Integrated Development Environment".
"Great community " is the top reason why over 2 developers like Cocoa (OS X), while over 127 developers mention "IOS Development" as the leading cause for choosing Xcode.