phoenix64 wrote:
I'd bet, just create a console application and link with Horde3D and Horde3DUtils libs. Same as on Linux/Windows.
Apple loves to create their own terminology for everything

I would just create an empty XCode project, add a new Cocoa Application Target, add the relevant source files and shared libraries (Horde3D and glfw) to that target, add the necessary system frameworks (Cocoa and OpenGL), and compile.
The details of doing all that are fairly involved though, so suggest you read up on XCode.