Track Starship launches and catch Starlink passes overhead — Flyby tells you exactly when and where to look, plus weather forecasts and a Logbook for every sighting.
Flyby is a subscription-based app. An active subscription is required to use Flyby.
Flyby gives you the full experience — real-time launch simulations, AR overlays, and alerts built around what you can actually see from your location. It tracks 30,000+ objects, launches worldwide, and tells you exactly when and where to look.
KNOW WHEN YOU'LL SEE IT
Flyby computes exact T+ time windows for when a launch will be visible from your location. Not just "a rocket is launching tonight" — you'll know the precise seconds after liftoff when the vehicle enters your line of sight, what direction to face, and how high to look.
KNOW WHERE TO LOOK
Open the AR spotting tool and Flyby places a marker on the satellite or launch vehicle in your sky. No star charts, no guesswork. Point your phone up and find it.
ONLY PASSES WORTH GOING OUTSIDE FOR
Flyby's visibility engine factors in orbital geometry, solar illumination, atmospheric conditions, satellite brightness, and your local light pollution. You only get notified when there's something real to spot — not just when something is overhead.
FEEL EVERY STAGE OF THE FLIGHT
A real-time ascent simulation with haptic feedback, stage separations, live telemetry on a 3D globe, and integrated livestream audio. Follow the flight from ignition to orbit.
THE GLOBE
Launches, satellites, visible passes, and live telemetry on a single interactive 3D globe. See who's aboard a space station when it's passing. The most relevant events for your location come first.
YOUR MISSIONS, YOUR ALERTS
Follow your favorite agencies and companies. Customize exactly what you get notified about. Launch countdowns and pass tracking arcs show up on your Lock Screen and Dynamic Island through Live Activities.
Terms of Use: https://getflyby.app/terms
Privacy Policy: https://getflyby.app/privacy
EULA: https://getflyby.app/eula
As a casual observer of the night sky, I really have very little idea of all that we can see even without sophisticated equipment. The app is very easy to use (for people like me) but it includes so much information that I think more seasoned astronomers would enjoy using it as well. I actually used it to track the Artemis II launch and was so impressed with the live-stream feed, the countdown clock etc. Also super cool feature that I have to comment on is that my phone vibrated along to the countdown clock. Just a nice touch! Excited to get more use out of this app in the future.
Artemis launch
gato chica
What a fantastic app! I watched the lead up, the countdown and the rocket launch. Wondering where it was after a few minutes, I looked up its location and was amazed at how fast it was over other countries. Such a great app. Totally recommend!!
Functional and educational
rickindad
Super cool app that allows you to track satellites as they are flying overhead and real time. I actually used this app to track the Artemis takeoff. Just point your iPhone up to the sky and the app does the rest!
Very well thought through and designed.
Fuchskkf
We watched the launch using this app and it was super cool.
Weather Forecasts — see sky conditions for every launch and pass, so you know before you head out whether clouds will block your view.
Logbook — record every launch and pass you witness, build an observing streak, and look back on everything you've spotted.
Daylight & Visibility — know whether a launch happens at night, twilight, or daytime, and when a twilight launch might produce a glowing "jellyfish" exhaust plume.
Richer Launch Details — launch windows, providers, vehicle specs, and pad info in one redesigned view.
In-App Glossary — tap the (i) next to any term for a quick, plain-language definition.
We also sharpened visibility timing and made notifications more reliable — the "visible at T+" time in the app now matches your alerts to the second, for launches and Starlink passes
alike.
Version 1.1
The developer, Redshift Software, LLC, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Location
Identifiers
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
