KeplerJs is described as 'Open source geosocial solution that lets users share favorite places and join discussions in real-time. It can be seen as a platform where users can interact with other open data platforms searching across OpenStreetMap, Geonames among other sources' and is a GPS Navigation service in the travel & location category. There are more than 25 alternatives to KeplerJs for a variety of platforms, including Android, Web-based, iPhone, Android Tablet and iPad apps. The best KeplerJs alternative is OpenStreetMap, which is both free and Open Source. Other great apps like KeplerJs are Google Maps, OsmAnd, MAPS.ME and Transportr.