An image forming device includes a storage unit registering information on at least one server, a communication unit connected to at least one server registered in the storage via a network and receiving application information, a UI processing unit configuring an integrated UI displaying applications supported by at least one server, a display unit displaying the integrated UI and a control unit, if an application is selected from the integrated UI, requesting a web service to a server supporting the selected application. Therefore, convenience in the use of web services may increase.