Software as a service (SaaS) is a platform which has being developed for running applications from an online platform. SaaS is adaptable for all the different industries and their business needs, Ideal for illuminating the need for users to install different applications on their own computer as now they can be access through the SaaS online platform. The cost of SaaS is based on the usage of the service by the customer. The Sendmode platform is a SaaS system.
The other types of cloud computing software are Platform as a Service (PaaS) and Infrastructure as a Service (IaaS) explained below:
Platform as a service (PaaS) is the renting of simulated servers and associated services required for running existing applications or developing and testing new ones such as hardware, operating systems, storage and network capacity over the internet. PaaS facilitates deployment of applications without the associated cost of purchasing and maintaining hardware, software or hosting of providing the services over the internet.
Infrastructure as a service (IaaS) is a provision model where organisations subcontract equipment needed in order to run the cloud such as storage or hardware. The service provider is responsible for managing, maintaining and storing the equipment, and is paid per usage for the equipment.
Hope this clarifies SaaS platform options for you.