기술 3D Stabilized Ball Compass

A 3-dimensional, stabilized ball compass. The perfect combination of simplicity, beauty and performance.
Features:
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Beautiful designed ball compass
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High precision and stability (special filter algorithm)
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Highly responsive (uses gyroscope)
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Various calibration methods
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Nothing more, just a compass. But a good one (I hope ;-)
This app is being continuously improved further. It also serves as a testing ground for my other compass app "AR GPS Compass 3D". New features / improvements to this app will also find their way in there, eventually.
Your feedback is highly appreciated!
Permissions explained:
Access coarse location:
This permission is necessary to fetch information about the geomagnetic field at your current position.
Internet / Access Network state:
This app contains advertisement. Yes, i know.., but I have to make a living, too...
Thats all for now, have fun,
Alex :-)