ThatSat: Satellite Finder
Which satellite is that?
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
A light is moving across the night sky. Tap where it is, swipe the way it moves, and ThatSat tells you which satellite you are looking at.
A moving point of light in the night sky — which satellite is that? ThatSat answers it in seconds, right on your screen. No account, no ads, no tracking.
SEE WHAT IS UP THERE NOW
Lay your phone flat and the sky dome shows every object you can see with the naked eye right now, where it is and where it is heading. The brightest one is named at the top: direction, height, brightness, and how long it stays visible.
IDENTIFY WHAT YOU SEE
Tap where the light is and swipe the way it moves. ThatSat lists the objects that match, best first. Or hold the phone up towards the light: the aiming view names the object under the crosshair. Prefer not to gesture? Choose a direction and a height instead.
MORE THAN SATELLITES
Rocket bodies and large debris shine too, and they are in the catalogue — every tracked object in orbit, not just the active satellites.
PLAN THE NIGHT
Before dark, ThatSat shows when darkness begins and tonight's brightest passes. Every object has its details and its visible passes for the next 48 hours.
MADE FOR THE DARK
Always dark, with a red mode one tap away that keeps your eyes adapted to the night.
PRIVATE BY DESIGN
Your location is used on your phone only and never leaves it. Positions are computed on the device; the app works offline with the last catalogue it has.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Max Nowack, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Max Nowack
- Size
- 45.8 MB
- Category
- Education
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and German
- Age Rating
4+
- 4+
- Copyright
- © 2026 Max Nowack