Live Satellite Tracking · SGP4 Propagator

The Universe
at Your
Fingertips

SkyLive renders a real-time 3D Earth with live orbital paths for 6,400+ satellites. Get precise pass predictions, Doppler shift calculations, and AR sky overlays — all in one stunning app.

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Satellites Tracked
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Orbital Paths
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SkyLive app showing 3D Earth globe with orbital paths and satellite telemetry panels

Everything you need
to explore the cosmos

Built for space enthusiasts, amateur radio operators, and researchers who demand precision and a beautiful interface.

Interactive 3D Globe

Drag, rotate, and zoom a photorealistic Earth with accurate texture mapping. Watch orbital paths animate in real-time using the SGP4 propagator.

Pass Predictions

Get precise satellite pass times, maximum elevation, direction, and duration for your exact GPS coordinates. Never miss an ISS flyover.

Doppler Calculator

Real-time frequency shift calculations for amateur radio operators. Track transmitter frequencies with automatic Doppler correction.

AR Sky View

Point your camera at the sky to see satellites overlaid in augmented reality. Identify any satellite passing overhead in real-time.

Pass Alerts

Get push notifications before satellite passes. Set custom elevation thresholds and notification timing for your preferred satellites.

Offline Ready

TLE data synced locally for offline operation. The app performs full orbital calculations on-device — no cloud required.

SkyLive dashboard showing live satellite data

Precision orbital
mechanics, simplified

  • SGP4 Orbital Propagator

    Industry-standard SGP4 C library processes Two-Line Element (TLE) sets from CelesTrak and Space-Track for sub-kilometer accuracy.

  • GPS-Aware Pass Prediction

    Your precise GPS coordinates power hyper-local pass predictions. Enable continuous tracking for real-time observer synchronization.

  • Auto TLE Sync

    Orbital data automatically refreshes on a configurable schedule. Pro users get access to the full 6,400+ satellite catalog.

Built with precision

Cross-platform Flutter app powered by native C orbital mechanics and Firebase cloud infrastructure.

Flutter / Dart SGP4 C Library Firebase Auth Cloud Firestore RevenueCat CelesTrak TLEs CustomPainter Firebase Crashlytics Google Sign-In Sign in with Apple iOS & Android

Start free, go Pro

SkyLive is free to download. Upgrade to Pro for the full satellite catalog and unlimited features.

Free

$0 forever

Perfect for getting started with satellite tracking.

  • Curated satellite selection
  • Interactive 3D Globe
  • 1 pass notification per day
  • 1 transmitter frequency
  • Basic telemetry view
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SkyLive Pro

$2.99 / month

Unlock the full satellite catalog and all advanced features. Annual plan saves 30%.

  • Full catalog of 6,400+ satellites
  • Unlimited pass notifications
  • All transmitter frequencies
  • Advanced Doppler calculator
  • AR Sky View
  • Playback & orbit history
  • Priority TLE sync
Get SkyLive Pro

Ready to explore
the orbital frontier?

Download SkyLive for free today. Track the ISS, spot Starlink trains, and never miss a satellite pass again.

Download on the App Store
Get it on Google Play