What is the name of the graphical user interface and application launcher for Apple's iOS devices?

The graphical user interface and application launcher for Apple's iOS devices is known as SpringBoard. This component is integral to the iOS operating system, serving as the main interface users interact with on their devices. It manages the layout of app icons on the home screen and facilitates access to applications, allowing users to organize their apps into folders and manage notifications. SpringBoard is also responsible for handling interactions such as the app switcher and the control center, enhancing the overall user experience on iOS devices.

The other options mentioned do not accurately reflect the official term used by Apple for this interface. HomeScreen, while it might describe the location where apps are displayed, is not the designated name of the system. AppDock suggests a feature more associated with desktop interfaces rather than mobile, and iLaunchpad does not exist as a recognized term in the context of iOS. Thus, SpringBoard is the correct answer, as it represents the unique and functional component that governs the user interface in iOS.