ArcGIS is described as «offers unique capabilities and flexible licensing for applying location-based analytics to your business practices. Gain greater insights using contextual tools to visualize and analyze your data. Collaborate and share via maps, apps, dashboards and reports» and is a GIS software in the travel & location category. There are more than 25 alternatives to ArcGIS for a variety of platforms, including Windows, Linux, Online / Web-based, Mac and Android. The best alternative is QGIS, which is both free and Open Source. Other great apps like ArcGIS are R (programming language), GRASS GIS, PostGIS and OpenLayers.ArcGIS alternatives are mainly GIS Software but may also be Map Services or Programming Languages. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of ArcGIS.