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Best Digital Books Apps

250+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated September 2026

The best digital books apps on iPhone average 4.6β˜… across 250+ titles β€” we've ranked them by what real users actually keep on their phones. Updated September 2026.

Compare top Digital Books Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Apple BooksApple BooksFree4.4β˜… (89K)NoNoSep 2026
2Amazon Kindle: Reading AppAmazon Kindle: Reading AppFree4.9β˜… (5.8M)NoNoSep 2026
3Libby, the library appLibby, the library appFree4.9β˜… (4.4M)NoNoSep 2026
4Hoopla: Your Library AnywhereHoopla: Your Library AnywhereFree4.8β˜… (1.4M)NoNoSep 2026
5Audible: Audiobooks & PodcastsAudible: Audiobooks & PodcastsFree4.9β˜… (5.6M)NoYesSep 2026
6RRC Digital BooksRRC Digital BooksFreeβ€”NoNoMay 2026
7inFlux Digital BooksinFlux Digital BooksFreeβ€”NoNoAug 2026
8Barnes & Noble NOOKBarnes & Noble NOOKFree4.7β˜… (117K)YesNoSep 2026

Top Picks for Digital Books

Apple Books#1

Apple Books by Apple

Read, listen, discover.
Editor's Choice
πŸ“š Books
4.4😐(89K ratings)
Free
Apple Books screenshot 1
Apple Books screenshot 2
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Apple Books screenshot 5

Discover, read, and listen to millions of books and audiobooks. Browse curated collections, personalized recommendations, and bestsellers. Customize your reading experience with various themes and settings, and set reading goals to build a habit. Share your library with family.

What We Love

  • πŸš€ Seamless integration across devices
  • πŸ“š Vast library of books available
  • πŸ‘ User-friendly interface
  • 🎧 Exceptional audiobook experience

Room to Improve

  • πŸ› Books get deleted from local storage
  • πŸ› Unreliable syncing between devices
  • πŸ”’ Lack of audio closed captions
  • πŸ€” Pricing concerns for some books
  • πŸ€” Frustrating UI changes in recent updates
Amazon Kindle: Reading App#2

Amazon Kindle: Reading App by AMZN Mobile LLC

Read books. Millions of ebooks
Strong Contender
πŸ“š Books
4.9😊(5.8M ratings)
FreeIn-App Purchases
#4in Books
Amazon Kindle: Reading App screenshot 1
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Amazon Kindle: Reading App screenshot 6

Access a vast library of eBooks, magazines, and comics on your mobile device. Customize your reading experience with adjustable text, brightness, and page-turning options. Look up words, track progress, and sync across devices.

What We Love

  • πŸ“š Huge library of books
  • πŸ“± Portable and convenient
  • πŸ” Useful features like dictionary lookup and highlighting
  • πŸŒ™ Adjustable reading settings (font, brightness, etc.)
  • πŸ” Seamless syncing across devices
  • πŸ’° Affordable books and Kindle Unlimited subscription

Room to Improve

  • πŸ›’ Cannot purchase books directly in the app
  • πŸ—‚οΈ Difficulty organizing and managing large book libraries
  • πŸ” Inconsistent behavior when highlighting/taking notes
  • πŸ”„ Unreliable syncing between devices
  • πŸ”Œ Drains device battery quickly
Libby, the library app#3

Libby, the library app by OverDrive, Inc.

Library audiobooks and ebooks
Worth Considering
πŸ“š Books
4.9😊(4.4M ratings)
Free
#2in Books
Libby, the library app screenshot 1
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Libby, the library app screenshot 6

Access millions of free ebooks and audiobooks from your local library. Borrow titles instantly with your library card, download for offline enjoyment, and enjoy a customizable reading and listening experience.

What We Love

  • πŸ“š Extensive library of books and audiobooks
  • πŸ” Convenient search and browsing features
  • πŸ”– Easy to manage holds and returns
  • πŸ”„ Seamless syncing across devices
  • πŸ•°οΈ Automatic returns to avoid late fees
  • 🎧 High-quality audiobook experience
  • πŸ†“ Free access with library card

Room to Improve

  • πŸ•°οΈ Long wait times for popular titles
  • πŸ” Confusing search and filtering options
  • 🀯 Buggy and unstable performance
  • πŸ”’ Lack of offline reading/listening
  • πŸ“š Limited selection in some genres
  • πŸ”™ Unintuitive navigation and UI

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FAQ about Digital Books

What are the best digital books apps for iPhone?
Apple Books tops our digital books apps ranking as of September 2026, with a 4.4-star average from 89K App Store ratings, and it's free to download.
Yes β€” 20 of the top digital books apps we rank are free to download, including Apple Books and Amazon Kindle: Reading App.
Apple Books has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 250+ digital books apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Apple Books is a digital platform for discovering, reading, and listening to a vast collection of books and audiobooks. It offers personalized recommendations, curated collections, and tools to customize your reading experience and track your progress.
You can customize your reading experience by choosing from various reading themes, adjusting font styles and sizes, line height, and letter spacing. The app also offers an Auto-Night Theme for comfortable reading in low light and vertical scrolling options.

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