> RubyMotion implements Ruby on top of the Objective-C runtime and iOS Foundation classes. Thanks to this tight integration, Ruby can interface with iOS very naturally at no performance expense.
> You can mix Ruby and Objective-C code, always have access to the latest C and Objective-C iOS APIs, and also make use of 3rd-party frameworks.
Here's the most important part:
> RubyMotion implements Ruby on top of the Objective-C runtime and iOS Foundation classes. Thanks to this tight integration, Ruby can interface with iOS very naturally at no performance expense.
> You can mix Ruby and Objective-C code, always have access to the latest C and Objective-C iOS APIs, and also make use of 3rd-party frameworks.