We encourage you to download trials of ThreeDify Excel Grapher (AsdGraph3D), 3Doffice and Designer. The trial period for each product is different. After the free trial period expires, you can still continue to use the product, but the functionality will be reduced to that of a free 3D viewer. In addition, your 3D plotting results can be shared globally and opened anywhere in the world at no cost to the viewers. All they need to do is just install the free viewer.
To compare the the full and “Free Viewer” versions of a particular products, simply visit the Feature List page for that product.