Harmony Stand Alone allows you to create, open, save and manage scenes on your computer's file system. Unlike Harmony Server, Harmony Stand Alone does not have a database system. Each scene you create is an independent project, and you must organize your scenes yourself.
If you have a Harmony Server license, you can still choose to run Harmony in Stand Alone mode if you like. However, if you have a Harmony Stand Alone license, you can only run Harmony in Stand Alone mode.