ActCAD 2020 Standard is mainly meant for 2D power uesrs. ACIS 3D Solid modeling & editing are not supported in Standard version unlike Professional version. It has very simple and modern interface and is easy to learn and use. There is no special learning needed if you are already using some other CAD software. It has many add-on commands, features and tools on top of IntelliCAD 9.2 engine. The licenses are perpetual and globally valid. Use self-license transfer command to shift the license between computers unlimited times (internet needed). Block Library with over 5000 symbols included in all our products. Self-help and technical support are available at no extra cost.