Comparison

Book.io vs eBooks Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Book.io

Manage your digital library of eBooks and audiobooks with a user-friendly interface. Customize your reading experience with various themes and text settings, and enjoy features like bookmarking and embedded media. Own and control your digital content.

Highlights
  • eBook and Audiobook management
  • Customizable themes and text settings
  • Seamless navigation and bookmarking
  • Audiobook playback and reading/listening switch
  • Embedded video and fixed format support
  • Social media login
Features
Read full description

Book.io is the eBook and Audiobook app that empowers you to manage your digital library on your terms. Transform your reading experience with a range of features crafted for maximum enjoyment. Key Features: 1. Effortless Reading: Navigate your eBooks seamlessly with our user-friendly interface. 2. Customizable Themes: Personalize your reading environment with Light, Paper, or Dark themes. 3. Tailored Text Settings: Adjust text size, line spacing, and fonts, including options like Open Dyslexic. 4. Bookmarking and Navigation: Easily bookmark pages and navigate through your reading material. 5. Media Support: Immerse yourself with audiobooks, embedded videos, and fixed format support. 6. Dark Mode: Read comfortably in low-light settings with our sleek dark mode. 7. Multi-Language Support: Experience Book.io in Spanish or English for a tailored touch. Why Choose Book.io? Embrace the future while preserving the past with our collection of Unchangeable, Unburnable, Unbannable eBooks and Audiobooks you own and control. Join our community of satisfied readers today. Download Book.io and embark on your journey of actual digital ownership. What’s New: - Audiobook Support: Dive deeper into your favorite stories with our new audiobook feature. Switch between reading and listening anytime, anywhere. - Social Media Connection: Book.io is now easier than ever to get started. Log in or create an account using your existing social media credentials.

About

eBooks Pro

This app is a versatile eBook reader supporting numerous file formats including EPUB, PDF, and documents. It offers editing capabilities, cloud integration, customizable reading options, and an AI assistant for summaries and translations. Organize your library with ease and enjoy a personalized reading experience.

Highlights
  • Supports EPUB, PDF, TXT, DOCX, and more
  • Edit documents directly within the app
  • Import/export from cloud services
  • Customizable themes and font sizes
  • AI-powered summaries and translations
  • Interactive annotations and form filling
Features
Read full description

Read EPUB books and PDFs, listen with a lifelike voice, and keep the passages that matter to you. eBooks Pro brings your library, notes and AI Assistant together on iPhone and iPad. FIND BOOKS • Browse Free Books: public-domain and openly licensed books, ready to download. • Add the book websites you like; EPUB and PDF links save straight to your library. • Import books from Files or download one from a link. READ YOUR WAY • Turn pages with a realistic page curl, slide them, or scroll. • Choose the font, text size, margins and a light, dark or sepia theme, with dark pages in Dark Mode. • On iPad, read one page in portrait and two side by side in landscape. • Reader Mode hides everything but the page. • See the time left in the chapter and the book, or the printed page numbers when a book has them. • Jump anywhere with Go To, then return to where you were with one tap. • Keep your place on the line with the Reading Ruler. • Tap or pinch a picture to see it full screen. LISTEN • Read Aloud from the toolbar or from any passage you select. • Books in English, Spanish, French, Italian, Portuguese, Hindi, Japanese and Chinese can use a natural voice that runs on your device. HIGHLIGHT AND ANNOTATE • Highlight in six colors and add a note to any highlight. • Draw and add sticky notes right on the page. • Bookmark a page with one tap. • Share a passage as a quote card. • Look up words and review them later in your Vocabulary list. • Annotate PDFs, fill in forms, and insert text or images. UNDERSTAND THE STORY • Story So Far recaps what you've read, without spoilers. • People & Places lists the characters and places you've met so far. • Ask your AI Assistant about a book: its answers stay within the chapters you've read. • Get summaries and translate passages to read across languages. TRACK YOUR READING • Put books on your Want to Read, Reading and Finished shelves. • Set a daily reading goal, keep your streak going, and count the books you finish this year. • Add the Currently Reading widget to your Home Screen. • Pick up where you left off on your other devices with iCloud. • Up Next opens the next book in a series from your library as you finish one. ORGANIZE YOUR LIBRARY • Arrange books and documents in folders and subfolders. • Sort by author and see each book's series at a glance. • Make your collection easier to browse with custom covers. • Import and export through Files, including iCloud Drive and compatible cloud storage providers. OPEN AND EDIT MORE • Convert EPUB books to PDF. • Edit PDF, plain text, RTF, Markdown, HTML and TeX documents. • View other document formats, including Word, Pages, spreadsheets and presentations. • Open images, audio and video alongside your reading material. Privacy Policy http://www.noteswriter.com/Kairoos_Privacy_Policy.html Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Book.io4 screens
eBooks Pro4 screens

Verdict

The call

Book.io and eBooks Pro both sit at 4.8 stars, but that hides the real split: 97% of Book.io's written reviews are positive against 50% of eBooks Pro's. Book.io also leads on price (Free vs $4.99) and in-app purchases (none vs 3). eBooks Pro's advantage is update cadence (every 8 days vs every 2 months). On rating, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Book.io is free to download; eBooks Pro costs $4.99 up front. eBooks Pro sells 3 in-app purchases, starting at $1.99 per month. Book.io asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Book.io against 4.8 for eBooks Pro. That said, the two scores are not equally well evidenced: Book.io has 58 ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 97% of Book.io's written reviews are positive against 50% of eBooks Pro's.

UpkeepUpdate frequency

Book.io ships an update every 2 months, eBooks Pro every 8 days. Both last shipped on November 3, 2026.

Scorecard7 real differences · 3 level
Book.io versus eBooks Pro: the parameters behind the verdict, then further details
ParameterBook.ioeBooks Pro
PriceFree — better$4.99
Rating4.8 (58 ratings) — better4.8 (8 ratings)
Positive reviews96.7% of reviews — better50.0% of reviews
Number of ratings58 — better8
Update frequencyEvery 2 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better26.0
Further details — not scored
Size31 MB461 MB
Age rating12+4+
DeveloperBook.io, IncKairoos Solutions SL

Customer experience

Book.io

All ratings57 ratings
Positive96.5%
Neutral0.0%
Negative3.5%
Written reviews30 reviews
Positive96.7%
Neutral0.0%
Negative3.3%

eBooks Pro

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

Book.io

Requested features

7 requests
  • Press and hold word for definition lookup
  • Multi-wallet support
  • Recent tab for current reads
  • Organize books into folders
  • Continuous scroll or tap to turn pages
Show 2 more
  • First cover page without bold lettering
  • More features to come

eBooks Pro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Book.io

No in-app purchases

3 purchases

eBooks Pro

Subscriptions2
  • eBooks Pro Full AI Assistant3 Days trial$1.991 Month
  • eBooks Pro Annual3 Days trial$14.991 Year
One-time1
  • eBooks Pro Upgrade$3.99

Questions

Is Book.io free?
Book.io is free to download, with no in-app purchases.
Is eBooks Pro free?
eBooks Pro costs $4.99, and also offers in-app purchases.
Which has better reviews, Book.io or eBooks Pro?
Book.io is rated higher. Book.io averages 4.8 out of 5 from 58 ratings, while eBooks Pro averages 4.8 from 8 ratings.
Do Book.io or eBooks Pro have ads?
Neither Book.io nor eBooks Pro shows ads.
Which is updated more often, Book.io or eBooks Pro?
Book.io ships an update every 2 months, and eBooks Pro every 8 days. Most recently, Book.io was updated on November 3, 2026 and eBooks Pro on November 3, 2026.

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