Relief Maps is described as 'GPS application focused on outdoor sports, the app is based on an beautiful and high-performance 3D map' and is a Map service in the travel & location category. There are more than 10 alternatives to Relief Maps for a variety of platforms, including Web-based, Android, iPhone, Android Tablet and iPad apps. The best Relief Maps alternative is CoMaps, which is both free and Open Source. Other great apps like Relief Maps are OpenStreetMap, Google Earth, OsmAnd and NASA World Wind.