Apps may provide any type of functionality to SAMSON users. An app may be, for example, a connector to an external executable or web service, may wrap previously developed code to integrate its functionality with SAMSON and other SAMSON Extensions, or provide entirely new functionality based on the SAMSON Application Programming Interface (SAMSON API). When SAMSON loads an app during startup, it includes it in the App menu. When you open an app from the App menu, the Graphical User Interface (GUI) of the app appears, and you may start using it.
If you want to start developing you own apps, please, refer to the documentation about the generating SAMSON extensions and the SAMSON tutorials page for more information about writing new apps for SAMSON.