Online Compass
Phone compass not working? Checks to try
Troubleshoot denied motion access, unsupported sensors, relative-only rotation, stale readings and an unavailable True North correction.
Compass basics
Use a phone compass, check calibration and permissions, and understand magnetic versus true north before trusting a heading.
Articles
Magnetic north vs. true north
Separate a phone heading from a geographic route bearing before comparing their numbers.
Calibrate your phone compass
Check interference, permission and freshness before trusting a drifting phone heading.
Use a phone compass in your browser
Start a browser compass, read its north reference and accuracy, and handle permission or sensor failures.