Autodesk Fusion 360
The is the next generation of Fusion Inventor.
It's free for 90 days. And after a quick search online SolidSmack.com has an article saying it will cost $25 per user, per month. There is other software you can unlock for more cash, all the way up to $200 per month, per user for everything.
I really like this 3d printing software, I'm going to continue to use it.