# Torrossa Reader vs Thorium Reader

The clearest difference is review sentiment: Thorium Reader at 38% against Torrossa Reader's 0%. Thorium Reader also leads on update cadence (every 3 weeks vs every 4 months). Torrossa Reader's advantage is device support (4 vs 2) and iOS requirement (14.0 vs 26.1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Torrossa Reader ships an update every 4 months, Thorium Reader every 3 weeks. The most recent releases landed on September 30, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Torrossa Reader | Thorium Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.6 (11 ratings)](https://appshunter.io/ios/app/thorium-reader/id6745025189/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | 0.0% of reviews | **37.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 12 MB | 46 MB |
| Requires iOS | **14.0** | 26.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Casalini libri S.p.A.](https://appshunter.io/developer/432109605) | [Readium](https://appshunter.io/developer/1232183924) |

## What reviewers say

### Torrossa Reader

[App page](https://appshunter.io/ios/app/torrossa-reader/id1621262664)

Read digital texts in epub format with this application. It's designed for academic study and personal reading, focusing on humanities and social sciences. The app supports both protected and unprotected epub files.

**Highlights:** EPUB format support, Readium LCP protection, Academic and personal reading, Focus on humanities and social sciences, Supports unprotected epubs

**In-app purchases:** none


### Thorium Reader

[App page](https://appshunter.io/ios/app/thorium-reader/id6745025189)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Torrossa Reader free?

Torrossa Reader is free to download, with no in-app purchases.

### Is Thorium Reader free?

Thorium Reader is free to download, with no in-app purchases.

### Do Torrossa Reader or Thorium Reader have ads?

Neither Torrossa Reader nor Thorium Reader shows ads.

### Which is updated more often, Torrossa Reader or Thorium Reader?

Torrossa Reader ships an update every 4 months, and Thorium Reader every 3 weeks. Most recently, Torrossa Reader was updated on September 30, 2026 and Thorium Reader on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*