what3words is described as 'What3words encodes geographic coordinates into 3 dictionary words (for example, the Statue of Liberty is located at planet.inches.most). what3words is different from other alphanumeric location systems and GPS coordinates in that it displays 3 words rather than long strings of' and is an app in the travel & location category. There are more than 25 alternatives to what3words for a variety of platforms, including Windows, Online / Web-based, Linux, Mac and Android. The best alternative is QGIS, which is both free and Open Source. Other great apps like what3words are ArcGIS, GRASS GIS, FixPhrase and SAGA GIS.