1. A system comprising: at least one processor; and memory storing instructions that, when executed by the at least one processor, cause the system to perform operations comprising: receiving an image of a screen captured from a display of a mobile device, determining areas of actionable content in the image, determining that a density of areas of actionable content in a first portion of the image exceeds a threshold, the first portion including a first area of actionable content and a second area of actionable content, selecting the first area in response to determining that content represented by the first area has a higher relevancy ranking than content represented by the second area of actionable content, determining an action for the first area of actionable content, generating annotation data for the image, the annotation data including a visual cue that corresponds to the first area of actionable content, the visual cue being actionable to initiate the respective action when selected and configured to be displayed with a current screen on the mobile device, and providing the annotation data for display on the mobile device.