Programs, systems, and methods are described for providing on-demand applications to users by infrastructure as a service platforms. A request catcher may receive a request to start an application that runs on a managed system that is scheduled to be off. The request catcher or a management application may verify that the user has authorization to access the application and request to the management application to start the managed system. The management application may start the managed system and the managed system may then provide access to the application to the user.