ISS Detector Satellite Tracker

Contains adsIn-app purchases
4.8
119K reviews
5M+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Join millions of users who never miss a pass!

Have you ever seen the International Space Station glide across the night sky? It is a breathtaking sight—a bright, steady light moving faster than a plane, home to astronauts orbiting 400km above Earth.

ISS Detector is the premier ISS tracker and satellite finder. Whether you’re a seasoned stargazer or just curious, we make the wonders of the cosmos visible from your backyard.

Why millions use ISS Detector:
• Precise Alerts: Our ISS tracker sends a notification minutes before a pass starts. You'll know exactly when and where to look.

• Weather Integration: We check your local forecast. If it’s too cloudy to see the station, we’ll let you know so you can stay warm inside.

• Trusted Authority: With over 11 million cross platform downloads, this is the most reliable tool for satellite spotting.

• Total Simplicity: No complex setup. Just open the app and see when the next "Brilliant" pass occurs.

🛰️ Expand Your Horizon (Premium)
Take your stargazing to the next level with our Premium Features:

• Starlink & Famous Objects: Track the SpaceX "satellite trains," the Hubble Space Telescope, and bright rocket bodies.

• Planets & Comets: Locate all the planets in our solar system and track new comets as they become visible.

• Amateur Radio (Ham) Satellites: Essential for operators. Track dozens of ham and weather satellites with real-time Doppler shifts and transmitter info.

Don’t just look at the stars—know what you’re seeing. Join the global community of space observers and never miss a sighting again.

Download ISS Detector today and look up!
Updated on
Mar 13, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App info and performance, and Device or other IDs
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.8
109K reviews
Kenny Lyons
February 21, 2026
if I could rate this app lower I would. they recently changed to a subscription based model in addition to the modular pay for extension to show information you want model. I have been using this app for close to 2 years, I paid for the amateur radio sattilite extension, now I'm not getting the info I paid for because I'm not subscribed. when you pay for something in an app you should get to keep it, or you should get your money back for functionality you bought but they locked you out of
7 people found this review helpful
Did you find this helpful?
RunaR
February 22, 2026
Update: Are still experiencing problem? Update to the latest version and use the Support button in the About menu. When you have one of the older packages you have access for life. You don't have to take a subscription. Go to the subscription screen and use the "restore purchases" button. If that doesn't work, contact me on support@issdetector.com
Caleb Robertson
April 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!!
88 people found this review helpful
Did you find this helpful?
Jo Ann Schlott
January 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.
65 people found this review helpful
Did you find this helpful?

What’s new

World map now wraps around the date line.
Support the system font size setting.
Fixed missing time zones in the settings.
Fixed some stability problems.