Application-manager software authenticates a user of a client device over a channel. The authentication operation is performed using a directory service. The application-manager software presents a plurality of applications in a GUI displayed by the client device. The plurality of applications depends on the authentication, the client device, and the channel. And the plurality of applications includes a thin application and a software-as-a-service (SaaS) application. The application-manager software receives a selection as to an application from the user. If the selection is for the SaaS application, the application-manager software provisions the SaaS application. The provision includes automatically logging the user onto an account with a provider of the SaaS application using a single sign-on and connecting the user to the account so that the user can interact with the SaaS application. If the selection is for the thin application, the application manager software launches the thin application.