What do you mean by 'pure cloud' software?

Pure cloud software — sometimes called Software-as-a-Service or SaaS — is a way of delivering applications, like Synergy, over the Internet as a subscription service. Pure cloud software is multi-tenanted, truly collaborative and built directly on a secure, cloud platform (like Microsoft Azure). This means there is only ever a single version of the software that is regularly updated by the provider for all users — nothing extra to do or pay. Fake cloud is where software designed for on-premises use is hosted on a remote server and accessed through a browser front end. This is not pure cloud software. It requires maintenance to upgrade it, licenses for new users, it's single tenancy (meaning a single set of data and no way to truly collaborate) and it is not scalable. If anyone asks you which version you're on, you know it's not pure cloud.