SaaS is an acronym for software as a service. It is a type of subscription software that allows users to access and use the software from a remote location. Applications hosted on the web in this way are called cloud applications. SaaS has become important in marketing because it allows companies to outsource certain functions, such as customer relationship management, to third-party providers. This can save the company money and time, as well as free up resources that can be used for other purposes.