Comparison

Amazon Kindle vs Interchange

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 and read millions of ebooks, magazines, and comics on your device. Customize your reading experience with adjustable text, brightness, and layout. Sync your progress, notes, and highlights across all your devices seamlessly.

Highlights
  • Access millions of ebooks, magazines, and comics
  • Customize text size, font, and layout
  • Adjustable brightness and background colors
  • Built-in dictionary and Wikipedia lookup
  • Track reading progress with page numbers
  • Sync reading progress across devices
  • Seamlessly switch between reading and listening
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

Interchange

Convert and read a wide variety of ebook formats, including DRM-protected files. Offers extensive customization for reading, note-taking, and book management. Supports multiple import methods and file decompression.

Highlights
  • Multiple ebook format conversion
  • DRM removal for Kindle books
  • Customizable ebook reader layout
  • Note-taking and bookmarking
  • Customizable book covers
  • Multiple page-turning methods
  • Comic reading support
  • Advanced book management
Features
Read full description

Functional Features 1. Supports multiple format conversions: txt, epub, mobi, azw, azw3, prc, pdf, markdown, docx, htmlz, fb2, etc. For txt files, automatically extract chapter directories. 2. Support removing DRM protected book files (Kindle DRM). 3. A comprehensive e-book reader that supports multiple formats: txt epub、mobi、azw、azw3、prc、pdf。 Powerful custom layout layout, including line spacing, paragraph spacing, first line indentation, top and bottom spacing, left and right spacing, custom background, custom font, global progress drag, and global search. Rich note taking and bookmarking functions. 4. Support custom book covers, online search, and album selection, even txt can have beautiful covers. Simultaneously editable, cropped, and filtered. 5. Provide multiple page turning methods, including overlay, translation, simulation, scrolling, automatic scrolling reading, landscape reading, and dual column reading. 6. Supports comic reading, with maximum screen ratio and maximum clarity for reading comics. Support scrolling mode for reading comics. 7. Powerful book management function, supporting grouping, renaming, sorting, dragging and merging groups, batch deletion, and moving operations. 8. Support modifying book element data such as title, author, ASIN, ISBN, time, publisher, etc. 9. Multiple file transfer methods, importing book files through WiFi, computer, Baidu cloud storage, local devices, and other application sharing methods for convenience and ease. 10. Quickly decompress compressed files such as zip, rar, 7z, etc. 11. Password protection function, can set gesture password, facial recognition unlock. 12. There are more features waiting for you to explore. [Automatic Subscription Instructions] --Subscription period: 1 month --Price: ¥ 18 --Subscription auto renewal, unless auto renewal is closed at least 24 hours before the end of the current term. --Payment will be charged to iTunes account upon confirmation of purchase --The account will receive renewal fees within 24 hours before the end of the current period, and the renewal fees will be determined --Subscription can be managed by users themselves, and automatic subscription can be disabled by entering their personal account on the App Store after purchase --If any unused portion of the free trial period is provided, it will be forfeited upon the user's purchase of the publication's subscription (if applicable) --Subscription period: 1 year --Price: ¥ 30 --Subscription auto renewal, unless auto renewal is closed at least 24 hours before the end of the current term --Payment will be charged to iTunes account upon confirmation of purchase --The account will receive renewal fees within 24 hours before the end of the current period, and the renewal fees will be determined --Subscription can be managed by users themselves, and automatic subscription can be disabled by entering their personal account on the App Store after purchase --If any unused portion of the free trial period is provided, it will be forfeited upon the user's purchase of the publication's subscription (if applicable) --Service Terms: http://blog.sina.com.cn/s/blog_a02518890102xuoh.html --Privacy Policy: http://blog.sina.com.cn/s/blog_a02518890102xtq4.html

Screenshots

Amazon Kindle4 screens
Interchange4 screens

Verdict

The call

The clearest difference is rating: Amazon Kindle at 4.9 against Interchange's 4.3. Amazon Kindle also leads on in-app purchases (none vs 10) and ratings volume (5.9M vs 212). Interchange's advantage is update cadence (every 6 days vs fortnightly) and iOS requirement (12.2 vs 17.0). On price, review sentiment, 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

Both are free to download. Interchange sells 9 in-app purchases, starting at $2.49 per month. Amazon Kindle asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Amazon Kindle holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: Amazon Kindle has 5.9M ratings behind it against 212, so its average is the more settled of the two. Written reviews complicate that: 68% of Amazon Kindle's written reviews are positive against 73% of Interchange's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Amazon Kindle ships an update fortnightly, Interchange every 6 days. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

Scorecard7 real differences · 4 level
Amazon Kindle versus Interchange: the parameters behind the verdict, then further details
ParameterAmazon KindleInterchange
PriceFreeFree
Rating4.9 (5.9M ratings) — better4.3 (212 ratings)
Positive reviews67.6% of reviews73.2% of reviews — better
Number of ratings5.9M — better212
Update frequencyFortnightlyEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
Best chart rank#4 — better—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.012.2 — better
Further details — not scored
Size206 MB103 MB
Age rating12+17+
DeveloperAMZN Mobile LLC小龙 刘

Customer experience

Amazon Kindle

All ratings5,884,659 ratings
Positive97.6%
Neutral1.4%
Negative1.0%
Written reviews8,817 reviews
Positive67.6%
Neutral8.8%
Negative23.7%

Interchange

All ratings212 ratings
Positive83.0%
Neutral2.4%
Negative14.6%
Written reviews112 reviews
Positive73.2%
Neutral3.6%
Negative23.2%

User reviews

Amazon Kindle

From 5.9M 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

Interchange

From 212 App Store ratings

What we love

  • 🚀 Fast and quick conversion speeds
  • 👍 Easy to use interface
  • 📁 Supports multiple file formats
  • 💰 Free version available
  • 📧 Can send files to Kindle

Room to improve

  • 🐛 Frequent app crashes and crashes on cover changes
  • 😤 Intrusive and excessive advertising
  • ❌ Poor conversion quality for PDFs
  • 🔤 Confusing and non-intuitive UI
  • 🌐 Inconsistent English localization

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

Interchange

Reported bugs

11 issues
  • App crashes when changing covers
  • Ad close buttons are too small or non-functional
  • Converted files show as 0 bytes
  • App crashes when deleting empty files
  • Pro version features still require upgrade prompts
Show 6 more
  • Converted PDFs have missing images and jumbled text
  • Files vanish after sending to Kindle
  • Conversion fails despite payment
  • App shows ads instead of converting files
  • Cover metadata not preserved in conversions
  • Right-to-left text displays incorrectly

Requested features

8 requests
  • Batch conversion capability
  • Right-to-left text support for Arabic books
  • Proper cover image inclusion in conversions
  • Unlimited conversions
  • iPad Pro landscape orientation support
Show 3 more
  • Ability to send files to Kindle over WiFi
  • Bookmark synchronization across devices
  • Better ad implementation with working close buttons

In-app purchases

None

Amazon Kindle

No in-app purchases

9 purchases

Interchange

Subscriptions2
  • UNLOCK ALL FEATURES, REMOVE AD$2.491 Month
  • UNLOCK ALL FEATURES, REMOVE AD$4.991 Year
One-time7
  • REMOVE ALL ADS$1.99
  • Conversions+50$1.99
  • All formats2 variants$1.99
Show 4 more
  • Conversions+600$2.99
  • Conversions+1000$3.99
  • ALL ACCESS, REMOVING AD$9.99
  • All advanced features$9.99

Questions

Is Amazon Kindle free?
Amazon Kindle is free to download, with no in-app purchases.
Is Interchange free?
Interchange is free to download, with in-app purchases available.
Which has better reviews, Amazon Kindle or Interchange?
Amazon Kindle is rated higher. Amazon Kindle averages 4.9 out of 5 from 5.9M ratings, while Interchange averages 4.3 from 212 ratings.
Do Amazon Kindle or Interchange have ads?
Neither Amazon Kindle nor Interchange shows ads.
Which is updated more often, Amazon Kindle or Interchange?
Amazon Kindle ships an update fortnightly, and Interchange every 6 days. Most recently, Amazon Kindle was updated on November 8, 2026 and Interchange on November 6, 2026.

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