What is native mobile design?
A native app only runs on a specific mobile operating system. It won't run on other mobile operating systems. So, for example, if you develop a native app for iOS, you'd do the development in Swift.
Does Apple have design system?
Apple Design Resources
Design apps quickly and accurately by using Sketch, Photoshop, and XD templates, guides, and other resources.
What is Apple's design system called?
Aqua is the graphical user interface, design language and visual theme of Apple's macOS operating system.