This is a high precision and insanely beautiful digital compass.

Useful features:
• Latitude, longitude and address
• Full-screen map
• True heading and magnetic heading
• Magnetic strength
• Slope level meter
• Sensor status

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.