• ISS Detector Satellite Tracker 1
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  • ISS Detector Satellite Tracker 4

ISS Detector Satellite Tracker

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 locator app.

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.


• 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

Available Extensions (in-app purchase):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 2013 or C/2012 S1 ISON in November 2013.Enable ISS Detector to display the positions of the planets on the radar view.

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

Category : Education

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Reviews (30)

Isa. S. Aug 26, 2021     

What is the observer point on the map? When I open the ISS map, there is a big red point on the equator labeled "observer" with no other explanation. When I go into the settings, the app has no problem picking up my actual position (which is not on the equator). Also, I checked that the bell icon is not crossed out, but I still don't get notifications from this app. I bought the full pack of extensions to see other objects, but they don't appear in the list : only the ISS is listed

Cal. R. Apr 9, 2022     

Fantastic app. Far above and beyond all other satellite tracking apps. You can watch ads to access Pro Features for a few days, I will be buying the Pro Version for sure. You can track many satellites not just the ISS. If you're using it to hear them on the radio, make sure to un-check the "visible passes only" option so it will alert you EVERY time its in range. I can't overstate how much I love this app!! Get it!!

Fre. D. Apr 3, 2022     

Confusing. It has this screen with circles and arrows and no info on what they mean. It looks like the plans in Wile E. Coyote's drafting table. The screen says it's coming in 8 hours at 10pm. We'll, 8 hours from now is 6pm. I am not going to scan the entire sky for 4 hours hoping to get lucky and find it. Maybe if you are a rocket scientist this app is useful. Brain surgeons don't stand a chance with this thing. Uninstalled!

Rus. B. May 20, 2022     

Great tool to know exactly where and when the ISS is and be able to look and see as it passes over head....

Jef. C. Feb 16, 2022     

Accurate and very detailed, but simple! This space station tracker is accurate to the minute! You can actually see a man made satellite as it crosses the sky.

Den. K. Apr 7, 2022     

Awesome app! Easy to use and pinpoint accuracy on finding the ISS.

Bar. Y. Jul 28, 2019     

One of the most accurate, if not THE most accurate out of all the ISS tracker apps. There's nothing I don't like about this app. The countdown until next visibility as well as the countdown until you lose visibility is spot on. The interactive star map is also a nice touch. The alerts are very helpful. The ads don't bother me. Great work!! Highly recommended downloading this!

R.. P. Apr 7, 2021     

I'm impressed with it. This is a well designed, user-friendly app. Ads are pretty much optional and they don't interfere when you're trying to use it. No badly timed pop-up ads to worry about. It been very accurate too as far as the location and timing of objects and what to expect when viewing it. Things like brightness and when/where it disappears completely. This app also turned me on to iridium flares. I never knew about them before. The flares are rare but I did manage to see two of them.

Dus. P. Dec 28, 2019     

A great app for finding not only the ISS, but other satellites as well. I use it all the time for NOAA passes and visible ISS passes. The add-ons are well worth it as well. This is a great app and I would be absolutely lost without it. It's much better than hauling out my laptop every time I want to see a pass. The live video feature for the ISS is pretty cool as well. It's always fun to show others when it flies over visibly, as most people never think about it flying over all the time. Even better when I'm able to pull a NOAA image for them as well.

Wil. S. L. Apr 8, 2020     

Absolutely great app!! Easy and fun to use. The app let me know exactly when the Space Station was overhead, and there it was easily observable at 9:22 PM, 250 miles up and supposedly moving at 17,000 miles/hr. We watched it for 3 minutes until it disappeared into the night side of the earth. Great shots from the ISS as well. My family loved it and all wanted the app. Thank you to the developers!

Ari. S. Jul 24, 2020     

Excellent app. I use it often with the extension pack while walking at night. A few suggestions to the devs: the names of objects get cut short at the top (ex. Comet C..). If I open it and check details, names are not included so it's confusing. Also it would be helpful to filter out sightings during cloudy/rainy weather. Alarm goes off in the middle of the night but it's raining outside so there's no point in waking up. Overall, great effort, and I'm glad you got the neowise comet fixed.

Jo. A. S. Jan 14, 2021     

I used to love this app. I bought all of the extension so I could see everything. Recently, notifications have stopped working and when I open it it is only showing the ISS. I need to refresh it to see all of the extensions I paid for. The extensions then work for maybe one more day, then they stop. It seems to have started after the most recent update. I have sent emails, but no response. Sure wish you would fix this issue.

Mic. L. I. Jul 5, 2020     

Excellent App for ISS viewing. I use this app all the time. Works perfect. Gives you an alert when the space station is going to be visible in your location. I highly recommend this app. Small amount of ads are just the right amount. This is one app I patronize the ads because it's so useful. Try it out. It may take a long time for the ISS to be visible in your location. Install it, set up notifications, and give it time.

ste. e. Aug 1, 2019     

I love this app in every way because it's so easy to use, looks great and it provides very accurate tracking of the ISS. I really like how accurate the notifications are as well which is very important if you don't want to miss the station passing over the UK in my case. I've set up the notification alert to go off 10 minutes before it can be sighted so that I've got time to set up my radios to listen out for signals being transmitted on 145.800mhz FM which it's brilliant for 👌.

A. G. u. Mar 4, 2019     

one of the best satellite apps i've seen., UI is easy to use, doesn't require much background knowledge, whole process is automated, from downloading the latest orbital parameters, to locating your position and directing you where and when to look. it's easy to configure the app for the objects or satellites you're interested in. sightings are accurate to a few seconds. worth the price of the full version, but the ads on the free version aren't that intrusive.

Ada. L. Mar 26, 2019     

I've used this app a few days for tracking amateur radio satellites. For the few satellites I have tracked so far, this app has proven to be very useful and accurate. It's ease of use has greatly simplified the whole process, but at the same time, it provides more than adequate information. This is accomplished through intuitive & efficient design interface. I also greatly appreciated the temporary unlock feature, to test drive all the bells and whistles before purchase. This was done in a fair & convenient manner. I hope other devs would follow suit. I am picky about which apps I choose to spend money on, and this one was well worth the price. Great job! Verizon / Motorola G6

Dom. P. Mar 21, 2020     

This app is wonderful. As an amateur radio operator, I know that software in this hobby is usually really clunky - not this one. Tons of features, filters, info about satellites, even frequencies and doppler shift calculations for amateur radio sats! I love the moments when there's something passing overhead, I get a notification, pull my friends to some darker place and show them the ISS or starlink, they are always amazed. I miss Iridium tho. For the people complaining about ads - just buy it! It's really cheap, IMO it should have a higher price and a yearly/quarterly subscription for that passive income.

ian. b. May 31, 2020     

I love the app and paid for the ad free version. It is amazing being able to see the ISS and planets with amazing accuracy. The reason that I have given such a low score is it keeps coming up all the time including disrupting other apps asking if I want to see ads or pay for the ad free version. I paid for the full version of the app to avoid this

Dav. B. Feb 6, 2019     

i reckon this is a great app for those that love looking to the night sky and identifying moving objects. I have had some issues with locations and compass direction, but overall the experience has been excellent. I have contacted the makers twice and both times they have replied within 24 hours. Keep it up.

Inf. M. Jul 14, 2020     

Used to work fine, now fails to show trajectory, or data. Previous version was better. I tried restarting the device. It didn't help. I have tried resetting application caches and data and manually setting the location (location was set to 43.7N, 20.7E). Still no change. Radar page shows all data as 0 except for timers that count random number of seconds down to 0, ant then continue counting. GPS was on.

Dav. H. Oct 3, 2020     

Fabulous app. But this free version is super unstable. Tried on two devices and get regular lockups on both. Absolutey gutted as it does all I could ever want as a radio ham moving onto satellites. Love the demo that can be unlocked by watching a video to check out all features. Never the less I bought the app, uninstalled the demo and installed the much larger full version. I am happy to say the full version is super stable.

Car. L. May 3, 2020     

Love how easy it is to customize for what objects you want to track. The location diagrams and star charts are very close to observation. I'm finding, however, that the times are off by about 5 minutes and I must consult other sources or risk missing events such as the passage of starlink trains. I have tried manually adjusting coordinates to no avail. Since predictions are consistently later than actual times observed, I'm wondering if some setting adjustment might be possible.

Ter. V. Oct 3, 2018     

A worthwhile app to have on your device. However, I came to rate this app because of an annoyance. Every time I go to record the sunset from the ISS, about 2 minutes into fullscreen mode, inevitably a banner pops up at the moment that the sun is just about to set asking me to review Rate this app. Well, that is a real crappy time to ask for a Rating. And the banner doesn't time out and there's no option to turn off the asking of a rating. There's one more thing. It doesn't always show a feed from the ISS. Sometimes it cuts to Nasa Channel, but it will give messages that the sun is about to set or rise in the ISS. Users should be able to pick between watching the ISS feed or Nasa Channel. All that being said, I do enjoy the app.

Eld. Feb 22, 2021     

'Ad break'... well, that's new. /..uninstalled..\ Reply to dev: this was the newest version on the play store, I had *just* updated it, and I've never seen a 'lets interrupt what you're doing to play an ad' popup prior to this. The previous 'here's an option to watch an add to unlock features' were palatable, locking the ui to feed me a full screen ad was not.

Ian. A. Apr 6, 2020     

If I could give zero stars I would. This app I had on my phone a few years ago. It worked fine and the ads were few and far between. I changed my phone and now have installed my favourite ISS app. Now everytime you go into a page you get an ad. You can't close the app without first watching ad after ad after ad. Then you get directed to pay for a version. Why should I pay to find out where the ISS is? GET RID OF ALL THE ADS AND IT'LL BE MORE ENJOYABLE TO USE. I've uninstalled from my phone.

don. r. Dec 2, 2018     

This app does way more than just ISS predictions, and I have moved away from a few other applications to track/predict Amateur Radio satellite passes. One issue that it does have is that you need an Internet connection to get passes. So turn off automatic refresh and set a manual location before you leave cell coverage!

Mic. T. Jul 20, 2019     

Really good, easy to use app. You can set notfications so that it alerts you when there will be a transit. The app also gives you useful information like angle of elevation and a compass with sky landmarks such as moon, jupiter and constellations to help you orient yourself and find out where the ISS is. I saw my first transit and it was sensational. Highly recommend to get out of bed just for 5 minutes to see a transit if possible

JM. K. Jun 8, 2020     

Really amazing app! You can track the sataliete, zoom in on places it passes and see fine detail (I managed to find a solar panel farm). You can even look around the international space station as if you were actually there. To look around the sataliete, click on the little yellow person at the bottom of the screen.

P2M. Oct 26, 2019     

This app is great and it works (kinda). I've tested it out and it seems that either the compass in the app isn't working too well or the app is saying that the ISS is further ahead in its path than it really is. Regardless of that, I can catch a view of one of mankind's greatest feats almost every night. Lovely.

Tan. R. Sep 16, 2020     

Great graphic design. Does what it says as far as tracking the orbit of ISS. I have not had the opportunity to test its accuracy of sighting ISS yet, ISS making a pass and me being outside haven't aligned very well. Which of course is in no way the apps fault. I would like to see a option to set a minimum elevation though. I live in a city anything under 30° is unviewable. And more notification options including permanently silence would be nice. But the app worth installing for ISS spotting.