Here's a brief overview of the features and limitations of the free licenses:
Instead, focus on the three legitimate pathways: comsol multiphysics free license
Designed for classroom instruction and homework. It allows up to 30 concurrent users on a school network. Academic Server License (ASL): Here's a brief overview of the features and
A versatile open-source multiphysics solver that handles fluid, structural, and electromagnetic simulations. FEniCS Project and electromagnetic simulations. FEniCS Project