See the International Space Station with the naked eye. Have you seen the International Space Station? It is visible with the naked eye! ISS Detector is the must have app for every one who likes astronomy. ISS Detector is an easy to use automatic personal ISS tracker and sat tracker. With a build in system for notifications and alarms. You will never miss a pass of the International Space Station and you will never miss the bright flashes of the iridium communication satellites.