The Compass app for Android is one of the best tools that you can use to find out the exact north and south points. The app is also perfect for use as a live wallpaper. It allows you to set your home screen as a compass and also provides you with an option to create your own custom live wallpaper. You can also use the compass to find whether your are settled in north, south, east, or west direction. All you need to do is place the Android device's location in the app's current location.