All of our current packages are sold only with a personal use license. This means that all licenses must only be used for sites that are owned, operated and registered to you (these can be commercial sites as long as you own and run them, and the domains are registered to you).
Use on client and customer sites is NOT permitted. You are also not permitted to build sites to rent or sell with this license (if you sell a site the new owner must have their own OptimizePress account)
If you are building sites for clients, you can join our Agency membership which provides licenses you can use for client sites. Find out more here.