Updated on Oct 18, 2026
Compass: “True N” derives Declination from approximate location and the built-in WMM 2025 model. A usable fix up to 10 minutes old is reused; otherwise one new approximate fix is requested, with about 12 seconds to wait. If location or model data is unusable: “True north unavailable — allow location access and try again.” Magnetic N remains available. Returning from another app no longer restarts a background heading service.
