A mobile terminal that is capable of reducing time and effort of a user when the user gives an execution instruction to an image processing apparatus. A memory device stores a set of instructions. At least one processor executes the set of instructions to detect an image processing apparatus that performs wireless communication, display, on a display unit, a lock screen that accepts an unlocking operation by a user, display, on the display unit, a screen of a control application for controlling an image processing apparatus, after the unlocking operation is accepted, accept, while displaying the lock screen, an execution instruction for controlling the detected image processing apparatus, without accepting the unlocking operation by a user.