Kindle

Carry a library in your pocket anywhere you go. Get access to more than 4,000,000 books and audiobooks including over 1,000,000 Kindle exclusive titles for books you have purchased from Amazon to use on this app. With the Kindle app, get your book once and read it on any device and share across your family’s devices. 
Choose from a wide selection of books, newspapers, and magazines from Wall Street 

Build your own library

• Read a sample of any book before adding it to your library
• Share your books across your household with Family Library
• Get personalized recommendations with Welcome Experience
• Get popular magazines and newspapers, and even textbooks with high-resolution color images
• Go into your local library to check out an eBook, and have it delivered wirelessly to your Kindle app

Source: https://itunes.apple.com/us/app/kindle-read-books-magazines/id302584613