1. An image matching apparatus comprising: a storage unit that stores image data of one or more devices that are connected to the storage unit through a plurality of local networks; an obtaining unit configured to obtain image data of a device image obtained by a capturing device comprising a mobile terminal; a specification unit configured to specify one or more of the local networks to be used for image matching; an image matching unit configured to perform image matching of the image data obtained by the obtaining unit against the image data stored in the storage unit of one or more devices that are connected to the specified one or more of the local networks˜and to obtain data relating to the capturing device by use of a result of the image matching; and a database that stores image data based on device models, wherein the apparatus comprises a server that provides an image matching service to the mobile terminal, and wherein the image matching unit is further configured to perform image matching of the obtained image data against the image data stored in the database in response to no image data being determined to match by the image matching unit against the image data stored in the storage unit.