Expressive gauges
Swipe between styles — jet, night, heritage, outdoor, eco, and more — without leaving the drive view.
Miltrio.
A GPS speedometer for the drive — expressive gauges that adapt from iPhone Duo’s outer cover to the full inner display, plus trip replay, Live Activities, Apple Watch, and CarPlay.
Models
Designed to be glanced at.
Dial styles for every drive — two phones and a Watch cycle through the look, same devices, swapping screens.
On the road
Everything you need while moving.
Real-time GPS speed, trip telemetry, overspeed alerts, and optional sharing — built to stay clear at a glance.
Speed warnings
Set a custom limit, tap quick presets (120 · 140 · 145 · 150 · Off), and hear warning tones when you go over.
Trip replay
Open a saved trip to scrub the route on the map with live speed, elevation, distance, and course along the way.
Live Activities
Keep speed, distance, time, max, and limit on the Lock Screen and Dynamic Island while a trip is active.
iPhone Duo ready
Layouts resize with every fold — compact dial on the outer display, expansive gauge and telemetry on the inner screen.
Apple Watch & CarPlay
Mirror the session to your wrist and dash so speed stays visible when the phone isn’t in your hand.
Live Share
Optionally share your live location with people you invite via iCloud — only while a share session is active.
After the drive
Replay every meter.
Trip history isn’t just a list — scrub the route, watch speed and elevation update, and read the full journey summary.
- Map route with play / scrub controls
- Point-in-time speed, elevation, distance, and course
- Distance, duration, max, avg, and elevation stats
Wrist ready
The dial that travels with you.
Pair Apple Watch to see speed at a glance when the phone is mounted or pocketed.
- High-contrast Watch gauges for daylight and night
- Session sync from iPhone over Watch Connectivity
- Units that follow your iPhone preference
Lock Screen
Tracking that stays in view.
Live Activities keep your trip alive on the Lock Screen — speed, distance, elapsed time, max, and your limit.
- Multiple Live Activity styles to match your vibe
- Overspeed state surfaces when you cross the limit
- Designed for quick glances between lights
Ready when you are.
Install Miltrio on iPhone or iPhone Duo, then add Watch and CarPlay when you want the full cockpit.