Maps compass - Directional Compass & Digital is free the application to support classic compass, fengshui compass and compass on the map. With GPS technogoly the application will auto directions for you. This the application support with device have sensor. Here is request with any application support digital compass. The compass app depends on the performance of your device exactly. If the compass works perfectly, it means that your sensors are perfect, too. *Note: + E is east + W is the we