Compass is essential app on your smartphone. It is a professional and accurate compass. East, west, south, north, you can check all directions. Compass can be used for all your outdoor activities whether you are flying, sailing, travelling or camping. It is tiny, simple and easy. Magnetic field measurement function has been added, you will be able to measure the magnetic field around. Where the magnetic field is strong may be the direction of the compass not be accurate. Please check the magneti