An information processing apparatus includes a conversion object acquirer and a message converter. The conversion object acquirer acquires a message in a car, which is transmitted and received in the car between an information terminal for driver seat and any other information terminal, as a conversion object message, during a period from the time when the message is generated by a transmitting-end terminal to the time when the message is provided to a user by a receiving-end terminal. The message converter determines the type of a message conversion process on the basis of terminal attribute information of the receiving-end terminal and converts the conversion object message in accordance with the message conversion process which is determined, to thereby acquire a converted message.