One live site. A licence runs one AlumDeck site for one institution or association, on your own domain or in a subfolder. A second live site, for a second campus or for a client, needs a second licence.
Plus a staging copy. The licence terms let you run a copy of the same site to rehearse an update or test a change. Keep it closed to the public and to search engines. Today the licence server holds one active address per key, so on a copy running at a second address the admin and member sign-ins stay paused while the live site holds the key; public pages still show. A proper staging slot is planned.
Moving hosts. The licence follows the site, not the server. A slot left unused for 30 days frees itself, so a move never needs a second purchase.
No caps anywhere. Nothing in the software limits members, admins, events, pages or storage. Your hosting is the only limit. The full terms are on the licence page.