StratoSync 2.0 — Real-time ISS tracking for Vision Pro with SharePlay, Aurora/Galaxy overlays, and spatial gestures
Hello everyone 👋
About 8 months ago, I shared StratoSync here with the r/VisionPro community.
That first post meant a lot to me.
StratoSync was already on TestFlight at the time, and some of you actually tried it, watched the video, and gave honest feedback. I kept that feedback in mind as I continued working on the app.
The original idea is still the same:
I’ve always wanted to look up and understand where the International Space Station is — not as a flat dot on a map, but as something alive, moving above Earth in real time, inside a spatial environment.
That feeling is still the heart of StratoSync.
Over the last 8 months, I focused on making the experience clearer, smoother, and more natural on Vision Pro — especially the first few seconds after launch, the Earth / ISS relationship, live telemetry, SharePlay synchronization, and the transition into immersive space.
✨ What StratoSync feels like now
When you launch StratoSync, Earth slowly comes into view as a living sphere in your space.
The ISS moves around it using live position data, and the orbit trail helps you understand its path around the planet.
You can rotate the Earth, zoom into the scene, follow the station’s movement, open the live telemetry panel, switch between mixed and full immersive modes, and explore the experience with Vision Pro gestures.
The goal is simple:
To make space feel closer.
🌍 Highlights
- Real-time ISS position updates every 5 seconds
- 3D Earth + ISS visualization built with SwiftUI and RealityKit
- Accurate ISS positioning based on live latitude/longitude data
- Orbit trail visualization
- Live telemetry panel with altitude, velocity, latitude, and longitude
- Manual spatial controls with drag, pinch, and 3D rotation gestures
- Mixed and full immersive space modes
- SharePlay support for synchronized ISS tracking
- Solar System overlays with Aurora and Galaxy scenes
- Spatial audio / ambience
- Look-based scrolling
- Persistent user settings
- Optional Logitech Muse spatial stylus support for 3D drawing
- Wall-proximity safety warnings while immersive overlays are active
- Foreground-only location comparison for checking your position relative to the ISS
🚀 TestFlight
I’m sharing this mainly to get feedback from people who actually use Vision Pro, not as a promo blast.
https://testflight.apple.com/join/tWS4CERT
🛠 Built with
- SwiftUI
- RealityKit
- visionOS 26
- Reality Composer Pro
- Metal compute kernels for Aurora / Galaxy overlays
- ARKit Room Tracking for wall-proximity safety
- SharePlay / Group Activities
- Live ISS data from wheretheiss.at
Thank you again to everyone who tried the first version and gave feedback. 🌌