Satellite Tracker
Track the ISS, Starlink and thousands of satellites in real time — then raise your phone and let AR guide you to them in the night sky.
Everything you need to follow a satellite
From a moving dot in the sky to its exact orbit — all on your iPhone.
Real-time satellite tracking
The ISS, Starlink and 16,000+ objects on map, radar and 3D globe views, with altitude, speed and full orbit paths.
AR sky guidance
Point your phone at the sky and satellites, stars, planets and constellations are labeled where they really are.
Pass predictions & reminders
Exact times, elevation and brightness for your location, with custom notifications so you never miss the ISS or a Starlink train.
A huge living catalog
Stations, weather satellites, rocket bodies, debris and more, with detailed parameters and public orbit data.
Time machine
Drag to replay a satellite's path up to 12 hours back or forward, and watch the whole constellation move.
Observation conditions
Cloud cover, moon phase, tonight's planets and visible passes at a glance — plan the perfect night.
Made in three steps
Pick a satellite
Search or browse the ISS, Starlink, weather satellites, planets and more.
Point at the sky
AR labels and arrows guide you to the exact spot above you.
Set a reminder
Get notified before the next visible pass — never miss a sighting.
Who is looking up tonight?
What's that bright dot?
Identify moving lights in the night sky in seconds — casual stargazing made effortless.
Plan the perfect pass
Photographers and enthusiasts can time ISS and Starlink train shots down to the minute.
Astronomy for everyone
Visual orbits, crew info and live data make space tangible for kids, parents and classrooms.
A working tool
Dish pointing aid, orbit reference and offline mode for technicians and serious hobbyists.
Frequently asked questions
Is Satellite Tracker free?
Yes. It is free to download and core tracking is free to use. A Pro plan (monthly, yearly with a 7-day free trial, or lifetime one-time) unlocks collections, Starlink trains, higher render limits and more — current plans are listed on the Subscription & Billing page.
Do I need an account?
No. Satellite Tracker works without an account, and your locations, favorites and records stay on your device.
Does it need an internet connection?
Core features work offline with the data baked into the App. Orbit data updates periodically online to stay accurate — an offline mode keeps the catalog usable without a connection.
Is my location uploaded anywhere?
No. Your location is stored only on your device, and orbit, launch and crew requests never include it. The single exception is the cloud-cover check, which sends coordinates to Apple (WeatherKit) to return local weather.
Where does the data come from?
Orbit data from CelesTrak, launch schedules from Launch Library (The Space Devs), crew information from a public dataset, and star positions from the Yale Bright Star Catalog — all public sources, with attribution in the App.