• ISS Detector Pro 1
  • ISS Detector Pro 2
  • ISS Detector Pro 3
  • ISS Detector Pro 4

ISS Detector Pro

Have you seen the International Space Station? It is visible with the naked eye!
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.ISS and Iridium FlaresSee the ISS and Iridium flares

Radio Amateur SatellitesTrack dozens of ham and weather satellites

Famous ObjectsTrack Hubble, X-37B, Fitsat, Tiangong and more

Comets and PlanetsTrack comets as they come closer to earth. Perfect for C/2011 L4 Panstarrs in March or C/2012 S1 ISON in November. Enable ISS Detector to display the positions of the planets on the radar view.

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
• Radar screen with path indication
• Current location on a map
• Detection of Iridium flares
• Notifications and Alarms
• Share sightings with whatsapp, twitter, gmail, email etc.
• Automatic location and timezone detection
• Widget
• Dedicated tablet layout

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

Category : Education

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Reviews (27)

Cal. H. Jul 15, 2019     

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!

all. w. May 18, 2022     

I love the app but my compass will not rotate like others have shown me on theirs.

Rob. F. Oct 11, 2020     

This app was good YEARS AGO. Now it just fustrates me. The gyroscope is inaccurate. It spins around like a clock (even when you don't move). Satellites never appear when or where displayed. It was simple and accurate years ago. I stopped using it, but recently purchased it for my new android s10e totally inaccurate and a waist of time.

Dar. J. May 31, 2020     

Functionally rich application, very well designed and nicely usable. Support has always been very responsive. Used for many years and there are often still improvements and extra functionality being added. Five stars.

Joh. P. Apr 24, 2020     

Try to update my previous message regarding app crashes. Apparently the developer created a fix today for the issue. I have downloaded and installed the fix and the application is working perfectly, exactly as I would expect. Well worth the price.

Bra. H. Apr 8, 2020     

The app provides incorrext times and information. It provides viewing data that doesn't match NASA's own spotthestation.gov website. The interface is really nice, but since it offers incorrect information, I do not recommend it.

Phi. E. Feb 5, 2022     

Exceptional! I found the app to be accurate an a joy to use with no bugs.

Roc. A. Jan 25, 2021     

App use to be great but in the last several months I've had many problems with it. Could be on my end but I've checked everything and I don't see where there's a problem and all my suggestions that I get back from an email for a fix, I already know.

JC. Apr 9, 2021     

It would be cool if you had a "pull to refresh" functionality when it's displaying the list of upcoming passes, and please make sure the horizontal orange progress bar animates while it is refreshing :)

A. y. Jan 26, 2022     

It works very well and has been spot on, to the second for viewing the ISS - well cloud permitting LOL. Not tried the app for the Chinese one yet though.

Las. H. Mar 31, 2020     

Doesn't beep when phone is locked. Would be neat to be able to change the alarm tone and the time when it signals. The preset 5 minutes is a bit too short for me to get to my vantage point. Also wondering, does it not do the count down beeps when it's cloudy?

Dav. H. Oct 3, 2020     

Brilliant app I have managed to transmit through the iss and Oscar satellites with ease now I have this to tell we where each sat is and it's path. Lovely and stable on android phone and Intel tablet. Worth every penny! I now recommend this to my students.

Per. W. Apr 24, 2020     

Crashes as soon as you click on a listing. Got an update from the developer, it's an issue with Google maps, not this app. Phew! I love this app!

Dav. D. May 18, 2022     

Love this. Works great.

kip. Apr 22, 2022     

Works perfectly on my android phone , but It Wont Work at all on my tablet ...even with the pro version It won't work on the tablet so I got a refund.

Pau. p. May 14, 2021     

Not many apps on my phone, but this one is always on board.. so that says something ! Excellent interface and always accurate.

Bil. A. Apr 23, 2020     

Terrible keeps crashing when you click a satellite with a report that ISS Detector Pro keeps stopping. I KNOW THAT!

Har. I. Nov 7, 2021     

The Radar is not responding or not moving whenever I rotate the phone. the elevation bar did not appear on screen even though it was selected at the setting.

Kil. Nov 26, 2018     

Amazing and reliable app, gives you accurate information on many objects. When I bought it I knew it would help me find the ISS, but after 3 days of having this, I have already seen the ISS twice, an Iriduim flare, and I also saw Uranus through my telescope.

Mic. B. Sep 28, 2018     

I'm a life long sky gazer and this app is my baby. It allows ample a warning and accurately guides you to the target. If you can't gaze into the heavens with your significant other, this is the next best thing. Doesn't get more geeky than that :)

Mat. M. Nov 13, 2020     

Working great on an updated Samsung S8! Support also cannot be faulted. The team replied to my issue in hours and have surpassed my expectations. Thank you!

sco. w. Jun 3, 2021     

Amazing. Have been listening to the Ham Radio repeater on board the ISS at 437.8 (+/- around .01 MHz for doppler) when the app shows a fly by. Starlink, comets, planets... Any stargazer is sure to live this!

Stu. B. May 31, 2020     

This app just enabled me to see the ISS being chased by Endeavor (Crew Dragon). Radar view, while slightly confusing at first, is absolutely brilliant.

Ben. S. Nov 28, 2019     

Overall very good. Would like to see time and heading of max elevation for satellite passes.

Fed. S. Apr 24, 2019     

Famtastic app. A must for anyone interested in the moving objects above us. The pro version let's you know about comets ,planets ,and more !

Dav. B. Jun 13, 2019     

This app really encourages us to get outside and look UP! Because of it I've gotten to see some amazing things that I would have missed otherwise. Thanks, dev!!

Joh. Jun 2, 2020     

Please incorporate a button to slide the intensity of red in dark mode down a few levels. Dark mode is too dark, right out of the box.