A portal is a website with data that is customized for the individual user. A Customer portal allows you to interact with customers that do not have a license to access your Quick Base data by providing secure, permissions based information you want them to see. Portals provide the opportunity to share files, plan, organize as well as manage activities, tasks and events in a private online environment.
I work at a small environmental non-profit that uses Quick Base for almost all of our administrative work and list management. This is my 4th year hiring the Data Collaborative to set up custom add ons for our Quick Base applications. The quality of work has been excellent.