As the digital space gets crowded with more and more eBook apps, for your offering to stand a chance in this competitive market place, the focus must be on delivering excellent, well-rounded user experience. Here are some elements that can help you achieve that:

• Store Listings: A user-friendly design with easy to navigate store listing and well-placed purchase buttons.
• Search filters: The provision to search for books by genre, sub-genre, author name, and so on, to facilitate a seamless navigation experience.
• Audiobooks: This format is fast gaining popularity, especially among the young readers who want to amass new knowledge on the go. If your resources permit, consider including narration books in your repository.
• Personalized library: This feature helps the user organize the books they have purchased or want to purchase efficiently. A personalized library can have tabs such as Books, Magazines, Read, New, Wishlist, and so on.
• Offline reading: Including an option to download purchased books is essential for offline reading.
• eReader Functionality: A Kindle-like e-reader functionality with elements such as book navigation, backlight settings, bookmarks, notes, and highlights can instantly enhance the appeal of your app.
• Gamification: This is another element of customization that is fast catching on to deliver a more engaging and entertaining experience to readers.
• Simple Payment Gateways: A simple, easy-to-setup payment gateway can help reduce the rate of cart abandonment exponentially.
• Fighting Piracy: Protecting the eBooks on your app from being illegally downloaded and circulated outside is critical for the survival of your app. You must leverage DRM protection that blocks attempts to pirate books, which not every user can circumvent.