An exercise history managing device is proposed. The device may include a network interface configured to provide a communication interface required for receiving data including a visit history of another user. The device may also include an input/output interface configured to provide an input interface through which an exercise log is received from a user and an output interface through which a predetermined screen is output to the user. The device may further include a display controller configured to control a screen displayed on the input/output interface on the basis of the received data and an input signal input by the user. The display controller may be further configured to control an exercise monitoring number corresponding to the received visit history of the another user to be displayed on the input/output interface, and control the exercise monitoring number to be initialized on the basis of the input exercise log.