An Emby Premiere subscription allows you to enjoy additional features in both the server and Emby-provided apps. Some apps provide individual unlocks for basic functionality but only Emby Premiere allows you to experience the full array of features in both the server and Emby apps.
Emby Premiere is attached to your server by entering a key. The features are tied to this key, not any particular "account". So, anyone who connects to your server will enjoy the benefits of Premiere (within the specified limits of your subscription).
For more information on the features of Emby Premiere as well as the purchase options, please see the web site Emby Premiere page.
For more information on what is offered by Emby Premiere vs. the individual app unlocks (available only in some apps), please see: Emby Premiere Feature Matrix.
For answers to common questions about Emby Premiere, please find your question in the side bar to the right. If you cannot find your question or answer in these documents, please post a new question in the Emby Premiere section of the community forum.