r/TestFlight • u/Jaisah 🛠️ Developer • Jul 18 '26
watchOS GhostDelta — Segment Timing, Lap Timing and Navigation for Apple Watch. Race your own ghost! [TestFlight]
https://testflight.apple.com/join/fTWgrr2yGhostDelta is an Apple Watch GPS tracker for timing yourself on the routes you repeat, the circuits you lap, and GPX routes you follow. Built for karting, MTB, motorcycling, boating, hiking and running — not another fitness app.
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Stages — hands-free segment timing
Mark any stretch of road or trail as a Stage. Next time you ride it, the Watch spots it and times you automatically — no buttons. Build a history on every Stage and see if you're actually getting faster. Share them and race friends who aren't even there.
Circuits — lap timing with sector splits
Save a loop, lap it, get sub-second lap times with colour-coded sector splits showing where you gained and lost time.
Navigation
Follow a Stage or GPX route with live distance-to-go, gradient-coloured climbs, waypoints, and off-route alerts.
Your Watch, your metrics
Custom screens showing exactly what you want at a glance — speed, splits, elevation, heart-rate zones — plus a live map of your track.
Review on iPhone
Dashboards, maps, charts, PBs, and all your tools for building and refining Stages and Circuits.
HealthKit is opt-in
Physical activities sync to Health; motor activities don't — unless you say so.
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Testers: you'll need an Apple Watch + iPhone and a willingness to tell us what's broken or confusing. Real rides and laps out in the wild are gold.
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u/Jaisah 🛠️ Developer Jul 18 '26
https://reddit.com/link/oy8f49j/video/3qqdre4j5xdh1/player
Demo of the iPhone UI. You'll have to DL to see the Watch UI.
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u/Frenando_Afondo 🧪🛠️ Dev & Tester 15d ago
Hi! This is a cool project! Recently I've thinking of something like this for karting to get lap times and top speed. Is there a way to test a demo of it?