The present invention provides a store application control device, a store application control method, and a store application control program that enable use of a flexible and convenient store application. A store application control device according to an aspect of the present disclosure includes: a store visit detecting unit that detects a store visit of a user on the basis of an action of the user; and an in-store mode activating unit that causes a terminal of the user to activate, among store applications having different operation aspects between an in-store mode and an out-of-store mode, the in-store mode when the store visit of the user is detected on the basis of the action of the user.