Comparison

Amazon Kindle vs Libby, the library app

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

Head to head
About

Amazon Kindle

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.

Highlights
  • Read purchased eBooks
  • Access Kindle Unlimited
  • Customizable text and display
  • Built-in dictionary and lookup
  • Track reading progress
  • Sync reading across devices
  • Listen to Audible books
Features
Currently charting
Read full description

READ ANYTIME, ANYWHERE On the bus, on your break, in your bed—never be without a book. Kindle books you have purchased on Amazon will automatically appear in your app. Kindle Unlimited and Amazon Prime members can select and download Kindle books directly in the app. FIND YOUR NEXT GREAT READ • Read the books you buy on Amazon in the Kindle app. Choose from over six million Kindle books (including those with Audible narration), magazines, and comics and start reading in seconds. Explore Amazon Charts best sellers and titles across genres like romance, science fiction, children’s books, self-help, religion, nonfiction, and more—and try any book with a free sample straight from the Kindle app. • Kindle Unlimited members can enjoy unlimited reading and listening, with the freedom to explore over 1 million titles, thousands of audiobooks, and current magazines. • Over 1,000 books, magazines, comics, and more included with Amazon Prime. GO BEYOND PAPER Turn your iPhone or iPad into a book with the free Kindle app—so you can read anytime, anywhere. Explore these reading features in the Kindle app: • Read your way. Customize your text size, font type, margins, text alignment, and orientation (portrait or landscape)—and choose whether to turn pages from left to right or continuously scroll. Read comfortably day and night with adjustable brightness and background colors. Go to the Aa menu in your book to get started. • Look up words, people, and places while you read. Breeze through words you don’t know and characters you can’t remember with the built-in dictionary, X-Ray, Wikipedia lookup, instant translations, and search within your book. Simply tap and hold a word to view its definition, or use the Google and Wikipedia links to get more information. • Track your reading progress. See what percent of the book you’ve read, real page numbers (for most top titles), and how much time you have left in the chapter or book based on your actual reading speed. • Bookmark places you want to revisit, and make highlights and take notes throughout your book. Open My Notebook to see all your notes in the same place. • Hop, skim, and jump with Page Flip. Flip between pages or get a bird’s-eye view of your book with Page Flip—don’t worry, we’ll save your place. • Zoom in on high-definition color images in Kindle books, magazines, comics, and manga. • Sync your books across devices. When you’re reading a book, the Kindle app will automatically sync where you left off—along with any bookmarks, highlights, or notes—so you can start reading on one device and pick up where you left off on another. • When you can’t read, listen. Switch seamlessly from reading your Kindle book to listening to the Audible book, all within the Kindle app. • Get notified when authors you love have new releases. By using this app, you agree to Amazon’s Conditions of Use (www.amazon.com/conditionsofuse) and Privacy Notice (www.amazon.com/privacy).

About

Libby, the library app

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.

Highlights
  • Borrow ebooks and audiobooks
  • Download for offline access
  • Send ebooks to Kindle
  • Adjust reader settings
  • Customize audio player
  • Create book lists
Currently charting
Read full description

All over the world, local libraries offer millions of ebooks and audiobooks. You can borrow them — for free, instantly — with a library card and Libby: the award-winning, much-loved app for libraries. • Browse your library’s digital catalog of books — from classics to NYT best-sellers • Borrow and enjoy ebooks, audiobooks, and magazines • Download titles for offline reading, or stream them to save space • Send ebooks to your Kindle (U.S. libraries only) • Listen to audiobooks via Apple CarPlay • Use tags to create your must-read list and any other book lists you want • Keep your reading position automatically synced on all your devices In our beautiful, intuitive ebook reader: • Adjust text size, background color, and book design • Zoom into magazines and comic books • Define and search for words and phrases • Read and listen to read-alongs with your kids • Add bookmarks, notes, and highlights In our ground-breaking audio player: • Slow down or speed up the audio (0.6 to 3.0x) • Set a sleep timer • Simply swipe to skip forward and backward • Add bookmarks, notes, and highlights Libby is built by the team at OverDrive, in support of local libraries everywhere. Happy reading!

Screenshots

Amazon Kindle4 screens
Libby, the library app4 screens

Verdict

The call

The clearest difference is in-app purchases: Libby, the library app at none against Amazon Kindle's 12. Libby, the library app also leads on review sentiment (84% vs 68%) and iOS requirement (10.0 vs 17.0). Amazon Kindle's advantage is update cadence (fortnightly vs monthly). On price, rating, ratings volume and ads 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

Both are free to download. Amazon Kindle sells 12 in-app purchases, starting at $13.99 per month. Libby, the library app asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Amazon Kindle against 4.9 for Libby, the library app. Both are backed by a comparable volume of ratings — 5.8M and 4.4M respectively. Written reviews are what separate them: 68% of Amazon Kindle's written reviews are positive against 84% of Libby, the library app's.

UpkeepUpdate frequency

Amazon Kindle ships an update fortnightly, Libby, the library app monthly. Both last shipped on September 24, 2026.

Scorecard5 real differences · 6 level
Amazon Kindle versus Libby, the library app: the parameters behind the verdict, then further details
ParameterAmazon KindleLibby, the library app
PriceFreeFree
Rating4.9 (5.8M ratings)4.9 (4.4M ratings) — better
Positive reviews68.1% of reviews83.7% of reviews — better
Number of ratings5.8M — better4.4M
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#4#3 — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.010.0 — better
Further details — not scored
Size198 MB13 MB
Age rating12+9+
DeveloperAMZN Mobile LLCOverDrive, Inc.

Customer experience

Amazon Kindle

All ratings5,849,569 ratings
Positive97.6%
Neutral1.4%
Negative1.0%
Written reviews8,291 reviews
Positive68.1%
Neutral8.7%
Negative23.1%

Libby, the library app

All ratings4,415,685 ratings
Positive97.3%
Neutral1.4%
Negative1.3%
Written reviews9,405 reviews
Positive83.7%
Neutral4.9%
Negative11.4%

User reviews

Amazon Kindle

From 5.8M App Store ratings

What we love

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

Room to improve

  • 🛒 Cannot purchase books directly in the app
  • 🗂️ Difficulty organizing and managing large book libraries
  • 🔍 Inconsistent behavior when highlighting/taking notes
  • 🔄 Unreliable syncing between devices
  • 🔌 Drains device battery quickly

Libby, the library app

From 4.4M App Store ratings

What we love

  • 📚 Extensive library of books and audiobooks
  • 🔍 Convenient search and browsing features
  • 🔖 Easy to manage holds and returns
  • 🔄 Seamless syncing across devices
  • 🕰️ Automatic returns to avoid late fees

Room to improve

  • 🕰️ Long wait times for popular titles
  • 🔍 Confusing search and filtering options
  • 🤯 Buggy and unstable performance
  • 🔒 Lack of offline reading/listening
  • 📚 Limited selection in some genres

Bugs and requests

Amazon Kindle

Reported bugs

3 issues
  • App crashes or freezes when switching between apps
  • Incompatibility issues with newer iOS versions
  • Dictionary lookup feature not working reliably

Requested features

5 requests
  • Ability to create and manage collections/folders for books
  • Option to easily see which books have been read vs unread
  • Improved highlighting and note-taking functionality
  • Better syncing between Kindle devices and apps
  • Dark mode and other customization options

Libby, the library app

Reported bugs

5 issues
  • Frequent app crashes and freezes
  • Issues with downloading and syncing content
  • Unreliable playback controls for audiobooks
  • Inconsistent behavior when placing holds
  • Disappearing reading history and bookmarks

Requested features

6 requests
  • Ability to search across multiple libraries
  • Custom reading/listening speed controls
  • Improved recommendation and discovery tools
  • Option to purchase unavailable titles
  • Customizable reading experience (fonts, themes)
Show 1 more
  • Integration with other e-book/audiobook services

In-app purchases

12 purchases

Amazon Kindle

Subscriptions2
  • Kindle Unlimited$13.991 Month
  • Kindle Unlimited1 Month trial$13.991 Month
One-time10
  • 140 Tokens - Kindle Vella (US)$1.39
  • 100 Tokens - Kindle Vella (US)$1.39
  • 140 Tokens - Kindle Vella (US)$1.99
Show 7 more
  • 368 Tokens - Kindle Vella (US)$3.49
  • 300 Tokens - Kindle Vella (US)$3.99
  • 368 Tokens - Kindle Vella (US)$4.99
  • 770 Tokens - Kindle Vella (US)$6.99
  • 770 Tokens - Kindle Vella (US)$9.99
  • 900 Tokens - Kindle Vella (US)$11.49
  • 2000 Tokens - Kindle Vella(US)$23.99
None

Libby, the library app

No in-app purchases

Questions

Is Amazon Kindle free?
Amazon Kindle is free to download, with in-app purchases available.
Is Libby, the library app free?
Libby, the library app is free to download, with no in-app purchases.
Which has better reviews, Amazon Kindle or Libby, the library app?
Libby, the library app is rated higher. Amazon Kindle averages 4.9 out of 5 from 5.8M ratings, while Libby, the library app averages 4.9 from 4.4M ratings.
Do Amazon Kindle or Libby, the library app have ads?
Neither Amazon Kindle nor Libby, the library app shows ads.
Which is updated more often, Amazon Kindle or Libby, the library app?
Amazon Kindle ships an update fortnightly, and Libby, the library app monthly. Most recently, Amazon Kindle was updated on September 24, 2026 and Libby, the library app on September 24, 2026.
Which is more popular, Amazon Kindle or Libby, the library app?
Amazon Kindle currently peaks at #4 in the App Store charts, and Libby, the library app at #3. Chart position reflects recent download velocity rather than total install base.

Other comparisons