If you are a student or hobbyist, the standard (free) version of DWSIM is usually sufficient.
Supports external unit operations and VB Class projects for highly specific industrial needs. dwsim pro
While both versions share the same underlying engine created by Daniel Medeiros, they serve different user needs: DWSIM (Open-Source) Free (GPL License) [1] Paid Subscription [5] Platform Windows, Linux, macOS, Android/iOS [27, 29] Browser-based (Cloud) [6] Support Community forums & public documentation [19] Private, personal expert support [6, 7] Updates Periodic community releases [30] Regular, continuous updates [6] Target User Students, researchers, and hobbyists [2] Engineering firms and industry professionals [6] Industry Applications If you are a student or hobbyist, the