Software as a service (SaaS) is a software distribution model in which a third-party provider hosts applications and makes them available to customers over the Internet.
SaaS is one of three main categories of cloud computing, alongside infrastructure as a service (IaaS) and platform as a service (PaaS).
SaaS removes the need for organizations to install and run applications on their own computers or in their own data centers. This eliminates the expense of hardware acquisition, provisioning and maintenance, as well as software licensing, installation and support. Other benefits of the SaaS model include:
Advantages of using a Saas platform: Flexible payments, Scalable usage, Automatic updates
Examples for companies using Saas platforms:
Slack, Trello, Monday, Wix, Spotify, Facebook, all e-commerce websites ( Amazon, Ali express, Etsy, etc) and many more
