Polar Compass

輕量，快速，準確的離線導航工具

Lightweight, accurate and simple compass for offline navigation that works all over the world.

• Clean design.

• Works without Internet connection.

• Magnetic and true heading.

• Optional use of GPS (required for True North).

• Two latitude and longitude formats.

• Magnetic strength

Caution!

• Do not use the app with magnetic covers.

• If you encounter a direction error, calibrate your phone by waving the device in a figure 8, two or three times.