The HSPC Sandbox is a system for app developers to create apps. A user of the HSPC Sandbox has the ability to create sandboxes. Each sandbox has an isolated dataset, tools, and launch support so an app developer can create real-world scenarios to try out their app.
The Registered Apps is a listing of all of the SMART on FHIR apps that are registered with your sandbox. These apps may be selected from a catalog of apps or may be registered by a member of your sandbox.