This feature is probably one of the less known built-in functionalities available out of the box with APEX. It is a workspace provisioning request workflow.
APEX is the ideal tool for the cloud and always has been because of its multitenant capability and because it is entirely web based. As you probably know, there is a free APEX cloud offering accessible at APEX.ORACLE.COM. When going to that web page, it is possible to request a workspace and test Oracle Application ...