AgriBus-NAVI is a GPS/GNSS navigation app for tractors that helps farmers around the world to save money on fertilizers, pesticides, etc., and to farm more efficiently. It is used by mounting a smartphone/tablet with this app installed on a tractor or other agricultural machinery/vehicle using a mounting holder. By driving while checking the screen display, it is possible to perform farming work in a straight line and at even intervals in a large field. You can see at a glance if you have oversp