SaaSGrid is an application server and integrated framework for software as a service (SaaS) applications.
Apprenda, the company that makes SaaSGrid, calls it an "operating system for SaaS applications." The software is like an Internet-based OS that sits between the user's application and the hardware (computer) accessing it. According to Apprenda, SaaSGrid simplifies the process of creating SaaS businesses for users. The software offers multitenancy, security, and administrative features such as pricing, billing, and provisioning.
Applications are developed through Microsoft's .NET languages and development environment. The user creates and tests applications locally and publishes them to and manages them from the cloud environment.
Apprenda also offers a free, downloadable version of the product called SaaSGrid Express.
Apprenda's Devon Watson demonstrates SaaSGrid: