Users can “choose from more than 750,000 free lectures, videos, books, and other resources on thousands of subjects from Algebra to Zoology,” according to Apple.
You can browse collections from institutions in 30 countries, including Stanford University, Yale University, the Massachusetts Institute of Technology, Oxford University, LaTrobe University, University of Tokyo, the Museum of Modern Art, the New York Public Library, and the Library of Congress.
Price: Free.