Comparison

Kortext vs Libri Audiobooks

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

Head to head
About

Kortext

Access and read eBooks from various publishers with enhanced multimedia. Tools are included to help learners and academics engage with their content, offering features like note-taking, referencing, and text-to-speech.

Highlights
  • Read PDF and EPUB files
  • Access 13,000+ free eTextbooks
  • Highlight text and create notes
  • Add Harvard/APA references
  • Read Aloud functionality
  • Adjust text size and background
  • Search within books
  • 500MB free cloud storage
Currently charting
Read full description

Kortext provides access to online eBooks from multiple publishers, with enhanced in-built audio and video content, combined with tools to assist learners and academics to make the most of their content. Features include: - Add and read PDF/EPUB files from your iPhone and iPad - Enjoy free access to a collection of over 13,000 eTextbooks - Easy navigation to content, providing quick access to pages - Highlight text in a range of colours and create notes, enabling quick reference of key sections - Add a reference (Harvard or APA), making creation of bibliographies much easier - Read Aloud sections, providing help with accessing content - Increase text size, change font and background of pages making it easier to view content - Search for keywords and phrases within the books directly from your bookshelf, allowing quicker access to relevant content - 500MB of free cloud file storage. Simply upload your study materials and harness the full potential within

About

Libri Audiobooks

This app offers an offline e-reader with on-device text-to-speech capabilities, allowing you to listen to books and articles anywhere. It supports multiple languages and voices, efficient storage, and includes a free catalog of public-domain works.

Highlights
  • On-device neural voices
  • Instant listening
  • 45 languages, 150+ voices
  • Text & Web listening
  • Small, efficient voice packs
  • Full PDF & EPUB eReader
  • Sync across devices
Features
Read full description

Libri Audiobooks — eReader + Offline Text to Speech Libri Audiobooks is a full eReader with on-device neural voices, so you can read and listen anywhere on-demand: subways, commuting, flights, rural areas, school or areas with limited data or Wi-Fi. Change speed, switch languages on the fly, and keep storage free — one compact voice (~60 MB) powers all your books. No per-book audio downloads. Features you’ll love: • On-device neural voices — natural, private playback that stays on your device. • Instant listening — tap Play and start immediately with lightweight voice packs. • 45 languages · 150+ voices — switch voices and languages on the fly. • Text & Web listening — paste text or a URL to listen instantly; smarter article extraction preserves clean formatting, and you can save clips to your Library with a title. • Small voice packs (~60 MB) — efficient storage that scales across thousands of books. • Full eReader for PDF & EPUB — customize reading preferences, extended highlighting, search, bookmarks, and more. • Sync across devices — keep your library and settings in sync across iPhone and iPad. • Free Classics Catalog — add thousands of public-domain books right on your device. Why offline matters • Works without a connection (planes, subways, rural) • No need to download 300+ MB per audiobook — keep storage for your treasured photos • Saves data & storage: one voice pack is reused across thousands of books • Private by design: your text stays on your device *Title availability varies by region. Public-domain works only. Terms & Privacy Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Narratorio Terms of Use: https://www.neuracoretech.com/terms Privacy Policy: https://www.neuracoretech.com/policy

Screenshots

Kortext4 screens
Libri Audiobooks4 screens

Verdict

The call

The clearest difference is review sentiment: Libri Audiobooks at 100% against Kortext's 17%. Libri Audiobooks also leads on rating (4.5 vs 3.9) and update cadence (weekly vs every 2 months). Kortext's advantage is in-app purchases (none vs 3) and ratings volume (1.3K vs 8). On price, ads, device support and iOS requirement 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. Libri Audiobooks sells 3 in-app purchases, starting at $3.99 per month. Kortext asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Libri Audiobooks holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: Kortext has 1.3K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 17% of Kortext's written reviews are positive against 100% of Libri Audiobooks's.

UpkeepUpdate frequency

Kortext ships an update every 2 months, Libri Audiobooks weekly. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

Scorecard7 real differences · 4 level
Kortext versus Libri Audiobooks: the parameters behind the verdict, then further details
ParameterKortextLibri Audiobooks
PriceFreeFree
Rating3.9 (1.3K ratings)4.5 (8 ratings) — better
Positive reviews17.4% of reviews100.0% of reviews — better
Number of ratings1.3K — better8
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#129 — better—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size38 MB86 MB
Age rating12+4+
DeveloperKortextNeuraCore Technologies

Customer experience

Kortext

All ratings1,339 ratings
Positive69.8%
Neutral6.2%
Negative24.0%
Written reviews374 reviews
Positive17.4%
Neutral7.2%
Negative75.4%

Libri Audiobooks

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Kortext

Reported bugs

4 issues
  • Frequent crashes and freezes
  • Pages not loading properly
  • Highlighting and annotations not saving
  • Login issues and inability to access content

Requested features

5 requests
  • Improved text-to-speech functionality
  • Better organization and navigation of content
  • Ability to customize text size and layout
  • Syncing across multiple devices
  • Offline reading mode

Libri Audiobooks

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Kortext

No in-app purchases

3 purchases

Libri Audiobooks

Subscriptions3
  • Online Voices Monthly3 Days trial$3.991 Month
  • Narratorio$12.991 Month
  • Yearly Subscription3 Days trial$99.991 Year

Questions

Is Kortext free?
Kortext is free to download, with no in-app purchases.
Is Libri Audiobooks free?
Libri Audiobooks is free to download, with in-app purchases available.
Which has better reviews, Kortext or Libri Audiobooks?
Libri Audiobooks is rated higher. Kortext averages 3.9 out of 5 from 1.3K ratings, while Libri Audiobooks averages 4.5 from 8 ratings.
Do Kortext or Libri Audiobooks have ads?
Neither Kortext nor Libri Audiobooks shows ads.
Which is updated more often, Kortext or Libri Audiobooks?
Kortext ships an update every 2 months, and Libri Audiobooks weekly. Most recently, Kortext was updated on October 15, 2026 and Libri Audiobooks on October 7, 2026.

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