Market Mapper is described as 'Delivers instant, regulator-ready analysis of merger impact on market shares and concentration across all plausible geographic market definitions. Empowers antitrust lawyers and M&A strategists with comprehensive competition analysis' and is an website. There are five alternatives to Market Mapper, not only websites but also apps for a variety of platforms, including Windows, Android, iPhone and Android Tablet apps. The best Market Mapper alternative is QGIS, which is both free and Open Source. Other great sites and apps similar to Market Mapper are Microsoft Power BI, ArcGIS, Maptitude and Insights for ArcGIS.