uNav is described as 'Open source mapping and GPS navigation using OpenStreetMap and Openrouteservice, offering online and offline access, multiple transport modes, and voice guidance' and is a GPS Navigation service in the travel & location category. There are more than 10 alternatives to uNav for a variety of platforms, including Android, iPhone, Web-based, iPad and Android Tablet apps. The best uNav alternative is CoMaps, which is both free and Open Source. Other great apps like uNav are OpenStreetMap, Google Maps, OsmAnd and Waze.