unity pro file sharing

So Im thinking of getting Unity Pro and I wanted to know if my friend who works on a mac will be able to edit projects that we have made if Im using unity Pro on a PC (Windows Vista)? I also wanted to know, if I buy Unity Pro will my friend have to buy it to also use unity Pro or am I able to Download it on his computer too?

Thanks in Advance :slight_smile:

Yes there is no problem working with OSX and Windows on the same project.

And your friend needs his own license. Unity is per developer licensed so you need a license and he needs one.