1)   FindGraph 1.88
FindGraph is a comprehensive, feature-rich graph editor, and a curve-fitting and digitizing tool for engineers, scientists and business. Discover the model that best describes your data.

 2)   Realsoft 3D V5.1
Feature wise, Realsoft 3D introduces features like SDS modelling, ray tracing, advanced physics simulation, open design. The program is used for example by artists working in the advertising industry, architects, product designers, game industry.

 3)   Arkan 1.06
Automatic B-spline tool for fast, intuitive and qualitative contour and mask outlining. Arkan is designed to convert border of a raster mask (selection of an object in scene) or any closed polyline into B-spline representation.