Purchases of Expansions and Adventure Packs are platform-specific, meaning that players should ensure they make these purchases on their primary platform to ensure they are able to easily access all the content it has to offer.
Players will only be able to access the new lands introduced in Expansions and Adventure Packs on the platform they have made their purchase on. Some other content from Expansions and Adventure Packs -- including the use of new Royal Tools, Dreamlight Duties, items, characters, and more -- can still be enjoyed by Expansion owners on other platforms where they own the game but not the Expansions.