Patent ID: 8014799

Claim:
A user interface modifying system for receiving a short message from a server and modifying a user interface using a short message service (SMS), comprising: an application downloader for downloading an application from the server according to a granted state of a client mobile terminal having received the short message, the short message comprising information for providing the application according to analysis results after analyzing personal information of a user of the client mobile terminal; a function key selector/modifier for establishing a function key that corresponds to the application that was downloaded on the client mobile terminal, and modifying a name of the function key; a drive screen modifier for modifying a drive screen displayed when the application is driven; an interface provider for driving the application and concurrently displaying the drive screen as modified in response to the function key being clicked, wherein the downloading of the application is dependent on a connection state of the short message, and wherein the short message includes a guide for establishing the function key on the client mobile terminal corresponding to the application; and the server comprising: a client manager that is configured to analyze the personal information on the client mobile terminal, and determine the application for the client mobile terminal according to analysis results; an SMS provider configured to transmit the short message for downloading the determined application to the client mobile terminal; an application provider/manager configured to provide the application to the client mobile terminal according to the granted state of the client mobile terminal having received the short message; and an expense settler/manager configured to provide to each client a per-application cost associated with the application provided, and settling the per-application cost.