Art Authority for the iPad provides a systematic structure of "rooms" featuring Early (up to 1400s), Renaissance (1400s-1500s), Baroque (1600s-1700s), Romanticism (1790-180ss), Impressionism (later 1800s), Modern (late 1800s -1950s), Contemporary, and American (US). There is an alphabetized directory, a section focused on highlights in the collection, a very clear and easy to follow section called Getting Around [the app], and a section on what is new. The 1000 Museums Gift Shop makes is easy for users to purchase archival reproductions of major works, including an option for custom framing.
There is a searchable index of 1500+ artists and searchable indexes of major titles, subjects and location. There is a shuffle feature that allows for continuous random display of all art by period or genre. Hyperlinks provide access to in-depth information on artists, major works and locations. It is easy to navigate through the elements.