Comparison

Cantook by Aldiko vs Thorium Reader

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

Head to head
About

Cantook by Aldiko

This app consolidates all your eBooks, comics, and audiobooks into a single platform. It offers seamless integration with public libraries, access to public domain titles, and the ability to import your own files. Customize your reading experience with various fonts, themes, and organization tools.

Highlights
  • Unified library for eBooks, comics, audiobooks
  • Public library integration
  • Import EPUB, CBZ, PDF files
  • Access public domain books
  • Customizable reading experience
  • Organize bookshelf with categories
Features
Read full description

Welcome to Cantook! The favorite reading app for the true bookworms. Bring all your eBooks, comics and audiobooks in the same place, no matter where they're coming from. Available on iPhone, iPad or macOS. With Cantook, we make it easy to bring all your books in the same place: • Built-in support for public libraries, allowing you to easily browse your library's catalog and borrow books from them • Thousands of public domain books from the Cantook Bookstore • Import your own EPUB, CBZ or PDF files • Add your own catalogs, for example using Calibre Cantook provides an extensive set of features for both casual and power users: • Customize your reading experience with multiple fonts and themes • Full support for dark mode throughout the app • Organize your bookshelf with categories and collections Our philosophy is to contribute to and leverage open standards: • Read EPUB files via a Readium Mobile based reading experience • Explore catalogs using OPDS • Full support for Readium LCP based on EPUB, PDF and audiobooks

About

Thorium Reader

Organize all your ebooks, comics, and manga in a single app. Customize your reading experience with adjustable text, fonts, and themes. Listen to audiobooks and zoom into visual content with ease.

Highlights
  • Unified bookshelf for all content
  • Adjustable text size and spacing
  • Multiple font options
  • Text-to-speech audio playback
  • Zoom for comics and manga
  • Offline dictionary and translation
  • Import EPUB, PDF, CBZ files
Features
Read full description

Looking for an app where you can bring all your ebooks, comics and manga in one place? That’s what we built Thorium Reader for. Read it your way Everyone’s different, that’s why we want you to be fully in control: • Adjust text size, switch between color schemes with themes and control spacing. • 10+ fonts available, including specialized ones. • You prefer audio? Listen to any ebook, whenever you want. We’ll remember your preference. • Zoom into comics, manga and magazines. • Add bookmarks with notes. • Use the built-in iOS dictionary and translation features, even offline. • Tweak your reading experience with reading options. Bring your own books A single bookshelf and reading application where you can bring all your content: • Download free books, borrow from your library or buy from your favorite retailer. • Support for ebooks, documents, comics and manga. • Import EPUB, PDF and CBZ files. • Support for Readium LCP, used by thousands of libraries and retailers. Thorium Reader is built by EDRLab, a non-profit dedicated to open standards, reading and accessibility.

Screenshots

Cantook by Aldiko4 screens
Thorium Reader4 screens

Verdict

The call

The clearest difference is rating: Thorium Reader at 3.9 against Cantook by Aldiko's 3.4. Thorium Reader also leads on review sentiment (60% vs 39%). Cantook by Aldiko's advantage is ratings volume (31 vs 9) and iOS requirement (15.0 vs 26.1). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Thorium Reader holds the better App Store score, 3.9 against 3.4. Both are backed by a comparable volume of ratings — 31 and 9 respectively. Written reviews point the same way: 39% of Cantook by Aldiko's written reviews are positive against 60% of Thorium Reader's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

Scorecard4 real differences · 6 level
Cantook by Aldiko versus Thorium Reader: the parameters behind the verdict, then further details
ParameterCantook by AldikoThorium Reader
PriceFreeFree
Rating3.4 (31 ratings)3.9 (9 ratings) — better
Positive reviews38.6% of reviews60.0% of reviews — better
Number of ratings31 — better9
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better26.1
Further details — not scored
Size26 MB45 MB
Age rating17+17+
DeveloperDe MarqueReadium

Customer experience

Cantook by Aldiko

All ratings31 ratings
Positive51.6%
Neutral9.7%
Negative38.7%
Written reviews88 reviews
Positive38.6%
Neutral15.9%
Negative45.5%

Thorium Reader

All ratings9 ratings
Positive77.8%
Neutral0.0%
Negative22.2%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

None

Cantook by Aldiko

No in-app purchases

None

Thorium Reader

No in-app purchases

Questions

Is Cantook by Aldiko free?
Cantook by Aldiko is free to download, with no in-app purchases.
Is Thorium Reader free?
Thorium Reader is free to download, with no in-app purchases.
Which has better reviews, Cantook by Aldiko or Thorium Reader?
Thorium Reader is rated higher. Cantook by Aldiko averages 3.4 out of 5 from 31 ratings, while Thorium Reader averages 3.9 from 9 ratings.
Do Cantook by Aldiko or Thorium Reader have ads?
Neither Cantook by Aldiko nor Thorium Reader shows ads.
Which is updated more often, Cantook by Aldiko or Thorium Reader?
Cantook by Aldiko ships an update every 2 months, and Thorium Reader every 2 months. Most recently, Cantook by Aldiko was updated on September 21, 2026 and Thorium Reader on September 10, 2026.

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