Satellight: Satellite Tracker
See the ISS pass over tonight
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Look up tonight. See when the ISS and the brightest satellites pass over you, then hold up your iPhone to find them in the sky.
Satellight shows you which satellites you can actually see from where you are tonight, and exactly where to look.
The International Space Station, China's Tiangong and over 150 of the brightest satellites and rocket stages cross the night sky every evening.
Lit by the Sun against a dark sky, they look like bright, steadily moving stars. Satellight works out every pass for your location and tells you when to look, which way it goes and how bright it will be.
TONIGHT'S PASSES
• Every pass bright enough to see, in order, with the space stations first
• When it appears, which way it travels, how high it climbs and how long it lasts
• Brightness in plain words, from "Very bright" to "Faint", with the magnitude for the experts
• A short explanation when nothing is up for a while, so a quiet night never looks like a broken app
KNOW WHERE TO LOOK
• A map of each pass across the sky that turns with you when you hold your iPhone flat
• The 3D sky view follows your phone: hold it up and see the satellite's path, the stars, the Moon and the planets right where they are
• An arrow points the way when the satellite is out of view
NEVER MISS THE ISS
• Optional alerts 5 minutes before every ISS and Tiangong pass over the next three nights, and before the brightest passes of the night
THE REAL NIGHT SKY
• Thousands of stars, the Moon with its phase, and Mercury, Venus, Mars, Jupiter and Saturn
• Twilight and moonlight shown as they are, so the screen matches what you see
PRIVATE BY DESIGN
• Everything is worked out on your iPhone, and your location is never sent anywhere
• No account, no ads, no tracking Available in English, Dutch, German, French, Spanish and Japanese.
Orbits from CelesTrak. Satellite brightness by Mike McCants. Stars from the Yale Bright Star Catalogue.
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The developer, ECKO Design, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
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Information
- Seller
- ECKO Design
- Size
- 2.1 MB
- Category
- Reference
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 5 more
- English, Dutch, French, German, Japanese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 ECKO Design