Nintendo Network
Nintendo originally planned for the Nintendo Network ID to become a prominent account system standard for all future Nintendo hardware releases, as well as any Nintendo-published apps released for non-Nintendo devices. However, in March 2016, Nintendo introduced Nintendo Account for non-Nintendo devices, and for the Nintendo Switch when it launched a year later, although the new account service complements Nintendo Network ID if users have one. For example, if users link their Nintendo Network ID to their Nintendo Account, they can share eShop funds between their Nintendo Switch and their Wii U/Nintendo 3DS.