Halo HUDSupport
Common questions
How do I set it up in my car?
Open Halo HUD, choose a destination (or none), then lay the phone screen-up on the dashboard right under the windshield. With “Lay flat to start” on, the HUD opens by itself. Use Settings → Calibration to set the size and position so the reflection sits in your line of sight.
The text in the reflection is backwards or upside down.
Go to Settings and turn on the mirror for windshield reflection. If the image is upside down, use the flip option or set landscape left/right to match where your charging port points.
I can't see it in daylight.
A plain windshield reflects only a little light, so the HUD is best at dusk and at night. Turn the brightness and intensity up, or put a small HUD reflector film on the glass for daytime use.
The speed limit is missing or wrong.
Speed limits come from OpenStreetMap, which volunteers keep up to date. Where a road has no limit in the map, the HUD can show the legal default for that kind of road and marks it with a dashed sign. You can fix map data yourself at openstreetmap.org. Always follow road signs.
My speed differs from the car's speedometer.
GPS speed is precise; most car speedometers read 3–7% high on purpose. Use Settings → Speedometer match to make the HUD agree with your dashboard.
Can it use Google Maps or Waze navigation?
Google Maps and Waze don't share turn-by-turn data with other apps. Halo HUD routes with Apple Maps (or OpenStreetMap), and you can still send any destination to Google Maps or Waze.
Which music apps are supported?
Apple Music and the Music app. iOS doesn't let apps read what Spotify and other players are playing.
Can I try it without driving?
Yes. Tap Demo on the home screen and a virtual car drives a real route so you can try every feature while parked.
Safety
Halo HUD is a driving aid, not a replacement for your attention. Set it up before you drive, keep your eyes on the road, and follow local laws about mounting and using a phone in a car.