Our website provides a free download of GeoGebra Classic 6.0.581. The actual developer of the free software is International GeoGebra Institute. The software lies within Education Tools, more precisely Science Tools.
From the developer:
A collection of mathematical tools for algebra, calculus and geometry.
You may want to check out more software, such as GeoGebra, Classic PDF Editor or Arcade Classic Pack, which might be similar to GeoGebra Classic.