EOS works on a SaaS Model. The premise of the software-as-a-service or SaaS model is that a piece of software is hosted on a cloud infrastructure (i.e., operated through a web browser), and businesses pay a monthly fee to get access to this software. It often takes a good amount of coding knowledge, combined with a good amount of user interface design skills, to really make a SaaS product worthwhile. The main difference between SaaS businesses and software companies is that SaaS is hosted in the cloud. Basically, this gets rid of the need for an end user license to activate the software and any infrastructure to host the software. Instead, EOS hosts their membership and the customer just has to log into their account and they get full access.