Information provision apparatus and driving assistance system using the same

An information provision apparatus mounted in a driver's vehicle, including a vehicle approach determiner configured to execute a vehicle approach determination process to determine whether or not an opponent vehicle is likely to approach the driver's vehicle at a future time, based on driving information including information as to whether a blinker of the driver's vehicle is in an on-state or in an off-state at a current time, and driving information including information as to whether a blinker of the opponent vehicle is in an on-state or in an off-state, and a notification device configured to inform a driver driving the driver's vehicle of an opponent vehicle that is likely to approach the driver's vehicle.