That being said, here's a review of Proteus 9.6:
For businesses and professional engineers, using pirated software can lead to heavy fines and legal action for copyright infringement. Is There a "Free" Way to Use Proteus? proteus 9.6 full crack
If the cost of a full Proteus license is out of reach, there are powerful, free, and open-source alternatives used by professionals worldwide: That being said, here's a review of Proteus 9