An information processing device includes a first obtaining unit that obtains, from an external information processing device, image information added to a captured image published for external access by the external information processing device under a preset obtainment condition, a first storage that stores the image information obtained by the obtaining unit, and a first controller that categorizes the image information stored in the first storage under a preset attribute condition. The image information includes at least positional information and time information each added to the captured image. The first controller categorizes the image information at least based on the positional information and the time information.