For those who came in late, Visual Studio LightSwitch is a simplified self-service development tool that lets you build business applications quickly and easily for the desktop and cloud.
Vole always pitched it as a simplified development environment which allowed punters to focus on the business logic instead of the application infrastructure.
According to a SpokesVole, LightSwitch was to supposed to accelerate the development of line-of-business apps, but the landscape has changed significantly since it was released. Mobile and cloud had churned out more connected and relevant choices for business app development.
Visual Studio 2015 is the last release of Visual Studio that includes the LightSwitch tooling and as expected Microsoft will continue to support users with existing LightSwitch apps as per the Microsoft Support Lifecycle.
Microsoft is no longer recommending LightSwitch for developing new apps, instead, they are pointing customers towards PowerApps. PowerApps is also a modern solution to build custom business applications that enables increased productivity with business apps that are easily created, shared and managed.