Abstract: Problems: To reduce a burden of publication of an application to advertising utilizing a media application. Solution means: A media application in a user's terminal U is programmed with SDK (managing software on the user side). A link destination information is set to an advertising display to be displayed on the user's terminal U. By selecting an advertising display by the user's terminal U, access is made to an application store AS via a managing server MS. The managing server MS acquires an application information corresponding to the advertising display selected by the user's terminal U, a media application information in the user's terminal U, and information on the user's terminal U and stores them as first information. The user's terminal U delivers a newly installed application information and the user's terminal information to the managing server MS as second information on the basis of SDK, when the newly installed application was detected.