http://www.arcgis.com/apps/StorytellingSwipe/index.html?appid=e13495ea32a5472783d39638d82581b3
GIS can be accomplished through mobile applications where two maps can be looked upon at once. ArcGIS has mobile applications called story maps which allow various ways to view two or more maps and their legends at once or within tabs to see the desired information. Within the url above the story map has been configured as a swipe to show life expectancy versus covid cases within the state of New Jersey.