An automatic evaluation system includes: a navigation device used in a vehicle; and a center that communicates with the navigation device. The navigation device includes: a stop-over determination device that automatically determines whether a user has stopped over at a store; a counting device that counts a cumulative number of stop-over times; a recommended store determination device that determines the store, at which the cumulative number of times has become two, as a recommended store; and a posting device that automatically transmits information on the recommended store to the center. The center includes a registration device that registers the information on the recommended store received from the navigation device in relation with the vehicle as a sender source.