Heading: --°
Tap “Enable Compass”, allow motion/compass permission, and rotate your phone.
How to use
- Hold your phone flat, screen up.
- Tap Enable Compass and allow motion/compass access.
- Rotate yourself or the phone—the dial moves while the crosshair stays fixed.
- Use the red triangle as the North (0°) reference. When “S” is at the top, you’re facing South.
- If it feels off, try a slow figure-8 to recalibrate and keep the phone away from magnets/cases.
FAQ
Why do I need to allow permission?
The compass reads your phone’s motion and magnetometer sensors. Without permission, it can’t find the heading.
It shows “Open on a mobile device”. Why?
Desktops usually don’t provide these sensors to the browser. After you tap Enable Compass, a QR appears so you can open this page on your phone.
How do I improve accuracy?
Avoid magnetic cases and speakers, stay away from metal desks, recalibrate with a figure-8, and keep location/compass services on.
Does it work offline?
Once loaded, the heading itself works from your phone’s sensors. The only network call is for the QR image on unsupported devices.
Which phones are supported?
Most modern iPhones and Android phones with a magnetometer and motion sensors. iOS will prompt you the first time for access.