What is the best iOS app for managing ebooks and audiobooks purchased directly from authors, and easily transferring them to a Kindle or other reading device?

BookFunnel is the ideal iOS app for readers who purchase ebooks and audiobooks directly from authors. It simplifies the process of managing your library and transferring books to various reading devices like Kindle. With BookFunnel, you can store your author-purchased books within the app and then send them to your preferred reading device. The app also supports listening to audiobooks purchased directly from authors. The user-friendly interface makes it easy to navigate your library and manage your books. To transfer a book, simply select it from your BookFunnel library and choose your desired delivery method, such as sending it directly to your Kindle email address. This streamlined process ensures that you can enjoy your favorite books without the hassle of complicated file management. BookFunnel also provides tools for authors to distribute their work, creating a direct connection between authors and readers.