Have you seen the International Space Station? Or the Chinese space station Tiangong 2? They are visible with the naked eye!

This is the easiest way to spot the station.

ISS Detector will tell you when and where to look for the International Space Station or Iridium flares. You get an alarm a few minutes before a pass. You will never miss a pass of the International Space Station and you will never miss the bright flashes of the iridium communication satellites. ISS Detector will also check if the weather conditions are right. A clear sky is perfect for spotting.

Extensions will enhance the functionality of ISS Detector. With an in-app purchase you can add comets and planets amateur radio satellites and famous objects like the Hubble space telescope or the Chinese space station Tiangong.

Available Extensions (in-app purchase):
Radio Amateur Satellites
HAM radio satellite tracking
Track dozens of ham and weather satellites. Includes radio frequencies and Doppler shifts for most satellites.

Famous Objects
Track Hubble X-37B Fitsat and more

Comets and Planets
Find the planets in the sky. And track comets as they come closer to earth.

ISS Detector combines data from Space-track.org SATNOGS Heavens-above.com minorplanetcenter.net and weather from yr.no.