1. A computer-implemented method comprising: displaying information associated with a chart on a display screen of a mobile computing system using a first chart type, the information including label information and value information; and detecting a selection of a portion of the chart on the display screen of a mobile computing system; causing a tooltip to be displayed on the display screen of the mobile computing system in response to detecting the selected portion of the chart, the tooltip displaying label information and value information associated with the selected portion of the chart.