An example terminal apparatus includes a communicator configured to communicate with at least one device through a hub device; a display configured to display an image; a user input receiver configured to receive a user's input; and at least one processor configured to control the display to display a dialog box where the hub device or the at least one device is set as a counterpart in response to execution of a messenger program, control the communicator to transmit a control signal including a command for controlling a predetermined device to the device targeted for control through the hub device so that the device targeted for control operates in response to the command corresponding to a user's input, and control the display to display a message corresponding to the transmitted command in the dialog box.