GeoGebra Geometry is described as 'Interactive, free online geometry tool from GeoGebra: create triangles, circles, angles, transformations and much more!' and is a Calculator in the education & reference category. There are four alternatives to GeoGebra Geometry for Mac, Windows, Android and Android Tablet. The best alternative is Geometer, which is free. Other great apps like GeoGebra Geometry are Geometry Calculator, Volume Calculator and MathX.