There is provided an app management software 16 for cooperating with a bandwidth control system 2 for dynamically changing a communication bandwidth of the mobile information terminal 3 for each type of application 3a which is installed on the mobile information terminal. This software comprises: a module 22 for causing the mobile information terminal 3 to detect a type of application 3a which communicates from the mobile information terminal 3; a module 24 for causing the mobile information terminal 3 to obtain mobile information terminal identification information for uniquely identifying the mobile information terminal on a communication network; a module 26 for causing the mobile information terminal 3 to send the type of application as well as information for identifying the mobile information terminal to the bandwidth control system; and a display section 28 for causing the mobile information terminal 3 to receive a communication status for each application from the bandwidth control system and displaying the communication status on a display of the mobile information terminal.