A free program for Android, by Kazeka SDL.
VOYA: Travel, Camping, Climbing, Map, Compass, Full Kit is an application that will make your life easier, it can help you find out more information about your current location.
It’s an application that has many sensors built in, like the compass, the GPS, the gyroscope, the accelerometer, the magnetometer, the camera, and more.
And this is not all, it also has support for checking your heart rate, environmental temperature, humidity, air pressure, altitude, and the angle between the magnetic north pole and your Android device.