EASY-FIT ModelDesign 5.13.1 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. EASY-FIT ModelDesign lies within Education Tools, more precisely Science Tools.
The actual developer of the software is Klaus Schittkowski. The most popular versions among EASY-FIT ModelDesign users are 5.1 and 5.0. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software.
From the developer:
Proceeding from given experimental data, i.e., observation times and measurements, the minimum least squares distances of measured data from a fitting criterion are computed, which depends on the solution of the dynamic system. Various types of one-dimensional partial differential equations are permitted, also hyperbolic ones describing shock waves.
You may want to check out more software, such as EasyFit, EASY-FIT Express or SPA SDK, which might be similar to EASY-FIT ModelDesign.