This compass is most accurate free and starts fast. It's the most precise of all compass apps and supports high definition displays. Download this useful compass now!
System tools, Prevent phone from sleeping:
Needed by the compass to disable the sleep mode, while the compass is on.
Your location, fine (GPS) location:
Needed by the compass for calculating the true north.
Network communication, Full Internet access, view network state:
Needed by the compass to download ads from the internet. They are the income stream of the compass developers.
+ Most accurate
+ Starts fast
+ High definition display support
+ Supports magnetic and true north over Wi-Fi an GPS
+ Most beautiful user interface of all compass apps
+ SDCard install support
Open Source LGPL code: https://github.com/MiCode/Compass