An App Drawer is a feature found in many mobile operating systems, such as Android. It serves as a centralized location where all installed applications are displayed. Users can access the App Drawer by swiping up or tapping an icon on the home screen, allowing them to view and launch apps that are not pinned to the home screen. The App Drawer typically organizes apps in a grid or list format, making it easy to find and open them. Users can also search for specific apps using a search bar, and some App Drawers allow for customization, such as creating folders or rearranging app icons for better organization.