QGIS is described as 'A fully featured, user friendly, open source Geographic Information System (GIS) with similar power to ArcGIS and MapInfo' and is a very popular GIS software in the travel & location category. There are more than 50 alternatives to QGIS for a variety of platforms, including Web-based, Windows, Linux, Mac and SaaS apps. The best QGIS alternative is ArcGIS. It's not free, so if you're looking for a free alternative, you could try Overpass Turbo or GRASS GIS. Other great apps like QGIS are Global Mapper, Maptitude, SAGA GIS and Placemark.