BookReader is described as 'is the Cocoa application for reading electronic books in the following formats:' and is a eBook Reader in the News & Books category. There are more than 50 alternatives to BookReader for a variety of platforms, including Android, iPhone, Windows, iPad and Android Tablet. The best alternative is calibre, which is both free and Open Source. Other great apps like BookReader are Amazon Kindle (Free), FBReader (Freemium), Moon+ Reader (Freemium) and Document Viewer (Free, Open Source).
Calibre is a free and open source e-book library management application made by users, for users. Many languages, designed around the concept of the logical book, i.e., a single entry in your library that may correspond to actual e-book files in several formats.
Amazon Kindle software lets you read ebooks on your Kindle, iPhone, iPad, PC, Mac, BlackBerry, and Android-based device. You can discover and read over 630,000 books in the Kindle Store, including the latest bestsellers and new releases.
Read book files in EPUB, PDF, DOC, DOCX, RTF, TXT, DJVU, FB2, MOBI and CHM formats. Supports chapters, bookmarks, page style. Saves the current reading position. Automatic detection and display of the list of all supported documents on your device.
Apple Books is the single destination for all the books you love, and the ones you’re about to. Browse the Book Store, join Oprah’s new Book Club, keep track of what you’ve read and want to read, and listen to enthralling audiobooks. All in one place.