GeoGebra Graphing 6.0.546 can be downloaded from our website for free. The program is included in Education Tools. This free program is a product of International GeoGebra Institute.
From the developer:
Welcome to the GeoGebra Graphing Calculator!
You may want to check out more software, such as GeoGebra, GetData Graph Digitizer or Graphs Made Easy, which might be similar to GeoGebra Graphing.