| It is an application framework for building applications that run on Mac OS X. |
It is the application framework for building applications that run on devices like iPhones and iPad. |
| Frameworks such as Foundation and AppKit are incorporated into Cocoa. |
Cocoa Touch is a combination of Frameworks such as Foundation and UIKit are incorporated into Cocoa Touch. |
| Cocoa classes use the NS (used for all classes and constants in the cocoa framework) prefix (like NSTextField, NSWindow). |
Cocoa Touch classes, on the other hand, use the UI (used for all classes and constants in the cocoa touch framework) prefix (like UITextField and UIWindow). |
