COMSOL Multiphysics is described as 'Engineering, design, and finite element analysis software environment for the modeling and simulation of any physics-based system' and is an app in the education & reference category. There are more than 50 alternatives to COMSOL Multiphysics for a variety of platforms, including Windows, Linux, Mac, Web-based and Chrome OS apps. The best COMSOL Multiphysics alternative is Elmer, which is both free and Open Source. Other great apps like COMSOL Multiphysics are CAD Sketcher, SimFlow, dicehub and FEATool Multiphysics.