Pro compass – Pro Compass Review

I don't know what app the other reviewers are using, but the one I've downloaded has wonderful graphics and amazing screen clarity; however the screen clearly states that the compass heading indicated is +/- 35 degrees. That is 1/5 of the dial. When I'm in the far Northern Minnesota territories a 5 degree error is serious. They need to get the error down to a fraction of the local magnetic deviation.
Review by Rickroyem on Pro Compass.