Because Apprenda is a runtime container for your app(s) and not simply a deployment mechanism, you gain the benefit of leveraging the Apprenda runtime API allows to obtain contextual information about various actors utilizing your web apps and web services. For example, you may want to display the currently executing user's name, or you want to disable functionality based on their subscription or entitlement definition. There really is a lot of information available through this API in both multi-tenant and single-tenant scenarios.
For information about these contexts, visit http://docs.apprenda.com/current/contexts.
API technical documentation for developers is located here: http://docs.apprenda.com/api