Alternative apps to Google Books Downloader:
  • 4.5
    17 votes
    Calibre is a free and open source e-book library management application developed by users of e-books for users of e-books.
    • Freeware
    • Windows/macOS/Linux
  • 4.3
    74 votes
    The best digital bookshelf - now even better.
    • Freeware
    • Windows
  • 3.9
    7 votes
    Read Anytime, Anywhere with Free Kobo eReading Apps.
    • Freeware
    • Windows/Android