Disclosed is an electronic device that includes a first display arranged to face a first direction, a second display arranged to face a second direction, a memory configured to store display data to be output on the first display or the second display, and a processor which executes an application, outputs a function execution screen corresponding to execution of an application on the first display and outputs additional information associated with the function execution screen on the second display while transmitting application execution data according to the execution of the application to an external electronic device, in response to a specified input.