A mobile terminal device includes an input unit, an input detection unit for detecting input information at a predetermined interval from starting to the end of the input reception, and an application control unit which allows the application to execute the process preliminarily allocated corresponding to the input information upon reception of the input information detected by the input detection unit. The application control unit allows the application to execute the preliminarily allocated process corresponding to the input information indicating the end of the input reception when the input information before elapse of the predetermined time is not received, and generates the signal indicating the end of the input reception for transmission to the input detection unit to finish input information detection.