INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING PROGRAM, INFORMATION PROCESSOR, AND INFORMATION PROCESSING METHOD

PROBLEM TO BE SOLVED: To provide an information processing system, an information processing program, an information processor, and an information processing method, for improving reliability of information written on a server.SOLUTION: In this information processing system including the server and at least one device for communicating with the server, the device includes at least an application execution means. The application execution means executes a predetermined application. The system includes, by either one of the apparatus and the server or by a cooperation of the apparatus and the server, an execution state determination means and a writing management means. The execution state determination means determines whether or not a state of the execution performed by the application execution means has satisfied a predetermined condition. The writing management means, when the state has satisfied the predetermined condition, permits a user of the apparatus to write in information managed by the server writing in the information managed by the server.