ISS Detector Pro

RunaR

About this app

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.

Ratings and reviews

This app has been critical to me in the process of learning to use satellites for amateur radio. Not just the ISS! Absolutely worth the "pro" version purchase, and then some! One feature I'd like to see added: filter based on max elevation for an approach. I live between 2 hills. Frequent passes of 5 about degrees aren't viable for me. So for example, I'd like to be able to filter for passes greater than 25 degrees elevation. Great app!! Thanks!

The greatest, most data rich, easy to use sky watching app I use daily. To learn and see how much is going on just above our heads and we don't need a telescope to see what's going on is just a revalation and opens up the rest of what's up there. It's too bad it seems that a competitor or someone has a bone to pick as I see so many inaccurate reviews perhaps because they are too lazy to learn to use it, if so then they probably won't take the time to walk outside and look into the sky.

I really love this app. No problem, runs smooth on every device I have tested it with. Really useful, not only for ISS, as it shows a great deal of satellites , comets and planets. If I could come with a wish it must be that it also included satellites for tv. Well worth the money :) Edit: 11.05.2026. Been using this for years now, but after the latest update widgets don't work correct, sometimes it don't update, and I have to go to the app to update the widget. App is slower than it was too

What’s new

Compass Correction: Manually calibrate your compass alignment in degrees to resolve device interference and ensure accurate tracking.
Countdown Audio Alert: A gentle audio cue sounds 5 seconds before a pass begins, alerting you exactly when to look up.