Have you seen the International Space Station? You can actually see it in the night sky.
See the Starlink satellite train with the Famous Objects (included in the Filter menu).

If you like space or astronomy, you will like this ISS tracker app.

ISS Detector Pro includes the functionality of ISS Detector (free) with all the Extensions and no ads.

You can see more in the night sky:
Radio Amateur Satellites
Track dozens of ham and weather satellites. Includes transmitter frequencies and Doppler shift calculations.

Famous Objects
Track Hubble, X-37B, Fitsat, Tiangong, Rocket bodies and more. Most are visible.

Comets and Planets
Track comets as they come closer to earth and become bright enough to see.

ISS Detector Pro 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.

• Overview of the coming passes
• Weather conditions for perfect sightings
• Notifications and Alarms
• Share sightings on social media.


ISS Detector combines data from Nasa, Heavens-above.com, minorplanetcenter.net and weather from yr.no.

Recent changes:
- Famous Objects satellite selection: Eye icons show which satellites are potentially bright.
- Amateur Radio satellite selection: Transmitter types are shown, you can also use the search to filter transmitter types.
- Amateur Radio details screen: Pin a transmitter to put it at the front of the frequency list below the radar.