A mobile terminal comprising: a display; a communication unit configured to exchange data with a server; a user input unit; and a controller configured to: in response to an input for executing an application associated with a home appliance, control the display to display a screen of the application associated with the home appliance; in response to an input for selecting a simple login item on the screen of the application, create a simple login ID based on device information of the mobile terminal, control the communication unit to transmit the simple login ID to the server for performing a simple login using the simple login ID; in response to an input for selecting an account login item on the screen of the application, receive, through the user input unit, user account information associated with a user account for performing an account login, control the communication unit to transmit data including the user account information to the server; and when the account login is performed after the simple login is performed, control setting information associated with a home appliance corresponding to the simple login ID to be applied to setting information associated with the home appliance corresponding to the user account. a display; a communication unit configured to exchange data with a server; a user input unit; and a controller configured to: in response to an input for executing an application associated with a home appliance, control the display to display a screen of the application associated with the home appliance; in response to an input for selecting a simple login item on the screen of the application, create a simple login ID based on device information of the mobile terminal, control the communication unit to transmit the simple login ID to the server for performing a simple login using the simple login ID; in response to an input for selecting an account login item on the screen of the application, receive, through the user input unit, user account information associated with a user account for performing an account login, control the communication unit to transmit data including the user account information to the server; and when the account login is performed after the simple login is performed, control setting information associated with a home appliance corresponding to the simple login ID to be applied to setting information associated with the home appliance corresponding to the user account. in response to an input for executing an application associated with a home appliance, control the display to display a screen of the application associated with the home appliance; in response to an input for selecting a simple login item on the screen of the application, create a simple login ID based on device information of the mobile terminal, control the communication unit to transmit the simple login ID to the server for performing a simple login using the simple login ID; in response to an input for selecting an account login item on the screen of the application, receive, through the user input unit, user account information associated with a user account for performing an account login, control the communication unit to transmit data including the user account information to the server; and when the account login is performed after the simple login is performed, control setting information associated with a home appliance corresponding to the simple login ID to be applied to setting information associated with the home appliance corresponding to the user account.