With so many useful native and third-party apps available on iPhone, the Compass app often goes unnoticed. It may not be as essential as Messages, Photos, or Mail, but you can still get plenty of use out of it, especially if you're a hiker, camper, or someone who enjoys outdoor adventures. One of the best features of the Compass app is that it works offline, relying on your device's GPS and magnetometer rather than cellular service. This means it's just as effective in remote areas as it is i...
