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Best I Books Apps

234+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated May 2026

Out of 234+ i books apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for I Books

Apple Books#1

Apple Books by Apple Inc.

Read, listen, discover.
Editor's Choice
📚 Books
4.4😐(71K ratings)
FreeAds
Apple Books screenshot 1
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Apple Books screenshot 4
Apple Books screenshot 5

Discover, read, and listen to a wide selection of books and audiobooks with personalised recommendations and curated collections. Set reading goals, customize your reading experience, and share with family members. Enjoy convenient features like Apple CarPlay integration and access from Apple Watch. Start your reading journey now!

What We Love

  • 🚀 Seamless integration across devices
  • 📚 Vast library of books available
  • 👍 User-friendly interface
  • 🎧 Exceptional audiobook experience

Room to Improve

  • 🐛 Books get deleted from local storage
  • 🐛 Unreliable syncing between devices
  • 🔒 Lack of audio closed captions
Amazon Kindle: Reading App#2

Amazon Kindle: Reading App by AMZN Mobile LLC

Read eBooks & Magazines
Strong Contender
📚 Books
4.9😊(5.6M ratings)
FreeAdsIn-App Purchases
#3in Books
Amazon Kindle: Reading App screenshot 1
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Amazon Kindle: Reading App screenshot 6

A versatile platform for reading eBooks on various devices, offering a vast library of digital books. Explore a world of literature at your fingertips.

What We Love

  • 📚 Huge library of books
  • 📱 Portable and convenient
  • 🔍 Useful features like dictionary lookup and highlighting
  • 🌙 Adjustable reading settings (font, brightness, etc.)

Room to Improve

  • 🛒 Cannot purchase books directly in the app
  • 🗂️ Difficulty organizing and managing large book libraries
  • 🔍 Inconsistent behavior when highlighting/taking notes
Audible: Audiobooks & Podcasts#3

Audible: Audiobooks & Podcasts by Audible, Inc.

1M+ Popular Books & Stories
Worth Considering
📚 Books
4.9😐(5.5M ratings)
FreeAdsIn-App Purchases
#1in Books
Audible: Audiobooks & Podcasts screenshot 1
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Experience a wide range of audio entertainment with audiobooks, podcasts, and more in one convenient app. Dive into captivating storytelling and enrich your mind on-the-go. Download now for endless listening pleasure.

What We Love

  • 🚀 Convenient for listening while doing other tasks
  • 👍 Wide selection of books
  • 👍 Narration quality is good
  • 👍 Easy to use app

Room to Improve

  • 🐛 Buggy app with crashes and sync issues
  • 🔒 Difficult to cancel subscription
  • 💰 Expensive subscription and book prices

More I Books apps to explore

4
NovelFlow-Unlimited Books
NovelFlow-Unlimited Books
NovelFlow-Unlimited Books
Read All Stories & Audiobooks
Free

Discover a free reading app for werewolf and billionaire romance stories. Immerse yourself in captivating novels with NovelFlow's extensive collection, user-friendly interface, and commitment to high-quality free content. Download now and delve into the world of romance fiction!

📚 Books
(9.8K)
5
Epub Reader -read epub,chm,txt
Epub Reader -read epub,chm,txt
Epub Reader -read epub,chm,txt
Ebook Reader for many formats
Free

An ebook reader app that supports various formats like EPUB and CHM, allowing users to read and interact with ebooks easily. Features include Table of Contents display, note-taking, bookmarking, and customizable font size settings. Contact for more info: junjie_ruan@163.com.

📚 Books
(11K)
6
eBooks for Kindle
eBooks for Kindle
eBooks for Kindle
Find Your New Favorite eBooks
Free

Discover a vast collection of free Kindle e-books across various categories and find your new favorite titles. Download the app to search, browse, and get redirected to Amazon's web store to purchase or download free e-books for Kindle.

📚 Books
(8)
7
eBook Search - download books
eBook Search - download books
eBook Search - download books
Paper free book library
Free

Discover a paper-free book library with over 2 million free eBooks spanning all genres. Instantly download to your favorite device and enjoy modern titles without any regrets. Join the secret book club now.

📚 Books
(3.4K)
8
Google Play Books & Audiobooks
Google Play Books & Audiobooks
Google Play Books & Audiobooks
Books & Audiobooks
Free

Discover a vast library of books, audiobooks, and comics spanning various genres and interests. With features like personalized recommendations and offline access, find your next favorite read effortlessly. Start exploring today!

📚 Books
(9.6K)
9
Libby, the library app
Libby, the library app
Libby, the library app
Library audiobooks and ebooks
Free

Access millions of free ebooks and audiobooks from local libraries instantly with Libby: the library app. Borrow, download, and enjoy a wide range of titles, customize your reading experience, and sync across all your devices seamlessly. Start your reading adventure today!

📚 Books
(4.1M)
10
Ebook Cambodia
Ebook Cambodia
Ebook Cambodia
Ebook Cambodia
Free

This platform provides access to electronic books and publications in the Khmer language, covering topics such as politics, economics, technology, and entrepreneurship, created by young Cambodian graduates. Explore a wide range of written news, analytical videos, and audio podcasts, and stay informed on current events and trends.

📚 Education
(7)
11
Kobo Books & Audiobooks
Kobo Books & Audiobooks
Kobo Books & Audiobooks
Your eBook library, anywhere
Free

Discover a comprehensive e-book platform offering a wide range of titles across genres, from bestsellers to niche publications. Immerse yourself in a world of reading with an extensive library at your fingertips. Start exploring today!

📚 Books
(12K)
12
iCollect Books: Library List
iCollect Books: Library List
iCollect Books: Library List
Organize a classroom bookshelf
Free

Create and organize a classroom bookshelf with the iCollect Books application. Keep track of your library collection easily. Start managing your books today!

📚 Books
(4K)
13
Galatea: Books & Audiobooks
Galatea: Books & Audiobooks
Galatea: Books & Audiobooks
Read Novels & Stories
Free

Experience interactive storytelling like never before with our innovative application, where you can immerse yourself in engaging visual novels and make choices that shape the outcome. Dive into a world of captivating narratives and unleash your creativity today!

📚 Books
(266K)
14
tolino - eBooks & audiobooks
tolino - eBooks & audiobooks
tolino - eBooks & audiobooks
reading app for your books
Free

This reading app offers access to over 4 million eBooks and audiobooks, allowing users to turn their mobile device into an eBook reader or audiobook player, with features like adjustable font sizes, bookmarks, and synchronization across devices. With a library link feature, users can combine eBook libraries from different booksellers, making it easy to manage and access their digital books anywhere, anytime, even offline.

📚 Books
(109)
15
zLibrary - EPUB Reader & PDF
zLibrary - EPUB Reader & PDF
zLibrary - EPUB Reader & PDF
Read eBooks, Books, iReader
Free

Access a comprehensive library of eBooks, read EPUB files seamlessly, and manage your digital book collection effortlessly. Dive into a world of literature with just a few taps!

📚 Books
(513)
16
Barnes & Noble NOOK
Barnes & Noble NOOK
Barnes & Noble NOOK
eBooks, audiobooks, and more
Free

A platform to effortlessly organize, catalog, and share your personal library of books with extensive categorization options, reviews, and the ability to track lending. Join now to simplify your book management experience.

📚 Books
(117K)
17
Audiobooks.com: Get audiobooks
Audiobooks.com: Get audiobooks
Audiobooks.com: Get audiobooks
Listen to novels
Free

Enjoy your favorite books on the go with the ultimate audiobook experience - access over 450,000 titles, enjoy adjustable playback speeds, and engage with a vibrant book-loving community. Download now to start your adventure!

📚 Books
(64K)
18
Bookmate. Listen & read books
Bookmate. Listen & read books
Bookmate. Listen & read books
Ebooks & audiobooks
Free

Access a vast library of audiobooks and e-books across various genres on an intuitive platform. Enjoy seamless reading and listening experiences on the go with Bookmate.

📚 Books
(1.2K)
19
Goodreads: Book Tracker & More
Goodreads: Book Tracker & More
Goodreads: Book Tracker & More
Kindle, Audible, Amazon & more
Free

A platform for discovering, reviewing, and sharing books with a community of readers. Find recommendations, write reviews, and connect with fellow book lovers. Start exploring the world of literature today!

📚 Books
(712K)
20
Storytel - Audiobooks Library
Storytel - Audiobooks Library
Storytel - Audiobooks Library
Audio Books & Reading App
Free

Access a vast library of audiobooks covering various genres and interests, offering a convenient and immersive reading experience on the go. Dive into captivating stories and knowledge at your fingertips with our extensive collection of audio content. Start exploring today!

📚 Books
(10K)