"Can I use the software I download from Creative Cloud on multiple computers?
Yes, you can install and activate Creative Cloud desktop applications on two computers, regardless of operating system, for the individual associated with the Creative Cloud membership. See the product license agreements page for more information."
You can put it on as many computers as you like, but you can only have it active (singed on) on two of them. It's easy to sign off and on of computers, so this is one of the great features of the subscription.