A computer system displays a first home screen user interface that includes a first subset of application icons. While displaying the first home screen user interface, in response to detecting a first input that meets second criteria and corresponds to a request to navigate to a second home screen user interface, replacing the first home screen user interface with the second home screen user interface. While displaying the second home screen user interface, in response to detecting second input that meets third criteria: replacing the second home screen user interface with a respective user interface that includes representations of a plurality of automatically-generated groupings of a plurality of applications. Activation of a respective representation of a respective automatically-generated grouping of the plurality of automatically-generated groupings in accordance with the first criteria causes display of a third subset of application icons.