ANSYS AIM is described as 'Makes upfront simulation easy by combining intuitive, guided workflows, accurate simulation results and optimization in a complete simulation tool. Integrated geometry modeling based on ANSYS SpaceClaim technology helps you create new 3-D concept models, or edit/repair' and is an app. There are more than 10 alternatives to ANSYS AIM for Windows, Linux, Mac, iPad and MATLAB. The best ANSYS AIM alternative is SOLIDWORKS. It's not free, so if you're looking for a free alternative, you could try FEATool Multiphysics. Other great apps like ANSYS AIM are Autodesk Inventor, Catia, Solid Edge and COMSOL Multiphysics.