🧭 BaroCompass

Why does the app need location access?

True-north heading, coordinates and GPS altitude come from Location Services. Location data never leaves your device.

Why does the app ask for Motion & Fitness access?

iOS gates barometer data behind Motion & Fitness. Granting it enables pressure readings, barometric altitude and relative change.

Why does the altitude differ from maps or other apps?

GPS altitude carries a few meters of error depending on satellite geometry, and barometric altitude drifts with weather. The app shows both sources with their accuracy so you can cross-check.

The compass is stuck or inaccurate — what can I do?

Move away from magnets, magnetic cases and large metal objects, wave the phone in a figure-8 to recalibrate, and enable Compass Calibration in system Settings.

Which devices are supported?

Requires an iPhone running iOS 17 or later. Barometric altitude needs a barometer (iPhone 6 and later); system-calibrated absolute altitude needs iPhone 12 or later.

Found an issue or have a feature request? Email us — we usually reply within 1-2 business days. Please include the app name and your iOS version.

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