MyPDFBooks vs Thorium Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MyPDFBooks
Read full descriptionHide full description
Designed to make it easy and enjoyable to read your favorite books on your iPhone and iPad. Enjoy reading your PDF-files with MyPDFBooks' clean reading view, optimised for books and long files. To support your reading, the app also organizes your books in a library, which provides numerous features, such as remembering the page you were on, bookmarks, and more. Keeping track of your reading has never been easier! Enjoy an immersive reading experience on your phone or tablet. Download now and start reading!
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.
- 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
Read full descriptionHide 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
Verdict
The clearest difference is update cadence: MyPDFBooks at daily against Thorium Reader's every 3 weeks. MyPDFBooks also leads on iOS requirement (11.0 vs 26.1). On price, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
MyPDFBooks ships an update daily, Thorium Reader every 3 weeks. The most recent releases landed on September 30, 2026 and October 13, 2026 respectively.
| Parameter | MyPDFBooks | Thorium Reader |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.6 (11 ratings) — better |
| Positive reviews | — | 37.5% of reviews |
| Number of ratings | — | 11 — better |
| Update frequency | Daily — better | Every 3 weeks |
| Ads | — | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 23 MB | 46 MB |
| Age rating | 4+ | 17+ |
| Developer | Miika Harma | Readium |
In-app purchases
MyPDFBooks
No in-app purchases
Thorium Reader
No in-app purchases
