# Thorium Reader vs Libra reader

The clearest difference is review sentiment: Libra reader at 100% against Thorium Reader's 40%. Libra reader also leads on rating (4.0 vs 3.5) and iOS requirement (18.2 vs 26.1). Thorium Reader's advantage is in-app purchases (none vs 2) and ratings volume (13 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Libra reader sells 2 in-app purchases, starting at $1.99 per month. Thorium Reader asks for nothing beyond the download.

Libra reader holds the better App Store score, 4.0 against 3.5. That said, the two scores are not equally well evidenced: Thorium Reader has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 40% of Thorium Reader's written reviews are positive against 100% of Libra reader's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Thorium Reader | Libra reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (13 ratings)](https://appshunter.io/ios/app/thorium-reader/id6745025189/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/libra-reader/id6782043006/reviews)** |
| Number of ratings | **13** | 1 |
| Positive reviews | 40.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | — |
| Size | 46 MB | 73 MB |
| Requires iOS | 26.1 | **18.2** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Readium](https://appshunter.io/developer/1232183924) | [Sergei Mikhailov](https://appshunter.io/developer/6782043188) |

## What reviewers say

### 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


### Libra reader

[App page](https://appshunter.io/ios/app/libra-reader/id6782043006)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Libra Pro – Monthly | $1.99 | per month |
| Libra Pro – Yearly | $19.99 | per year |


## Frequently asked questions

### Is Thorium Reader free?

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

### Is Libra reader free?

Libra reader is free to download, with in-app purchases available.

### Which has better reviews, Thorium Reader or Libra reader?

Libra reader is rated higher. Thorium Reader averages 3.5 out of 5 from 13 ratings, while Libra reader averages 4.0 from 1 ratings.

### Do Thorium Reader or Libra reader have ads?

Neither Thorium Reader nor Libra reader shows ads.

### Which is updated more often, Thorium Reader or Libra reader?

Thorium Reader ships an update every 3 weeks, and Libra reader every 3 weeks. Most recently, Thorium Reader was updated on October 25, 2026 and Libra reader on October 24, 2026.

---

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