Dafuq is freecad? It sounds waaaaaay too good to be true. Maybe above hot singles in your area want to fuck lol. I had a software I was using that let you use it free x amount of times but all you had to do was clear your cache/data each time it was triggered to expire and you had a fresh set of uses. Can't remember the name I'll jave to look it up.
It's not as intuitive as other comparable software, and has a fairly steep learning curve especially for beginners, but it is free. No subscription models that's plaguing the 3d modeling software field.