# Lis vs Thorium Reader

The clearest difference is rating: Lis at 5.0 against Thorium Reader's 3.4. Lis also leads on iOS requirement (15.6 vs 26.1). Thorium Reader's advantage is update cadence (every 3 weeks vs every 3 months) and ratings volume (12 vs 1). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Lis holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: Thorium Reader has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 38% of Lis's written reviews are positive against 40% of Thorium Reader's, so the app with the better star average is not the one people write more warmly about.

Lis ships an update every 3 months, Thorium Reader every 3 weeks. The most recent releases landed on October 7, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Lis | Thorium Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lis-a/id1096168122/reviews)** | [3.4 (12 ratings)](https://appshunter.io/ios/app/thorium-reader/id6745025189/reviews) |
| Number of ratings | 1 | **12** |
| Positive reviews | 38.1% of reviews | **40.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 86 MB | 46 MB |
| Requires iOS | **15.6** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Art Book Magazine](https://appshunter.io/developer/964526336) | [Readium](https://appshunter.io/developer/1232183924) |

## What reviewers say

### Lis

[App page](https://appshunter.io/ios/app/lis-a/id1096168122)

Enjoy a premium reading experience for all your ebooks and audiobooks, regardless of their source. Customize your reading with various fonts, themes, and spacing options. Sync your progress across devices and use speech synthesis to listen to your books.

**Highlights:** Read ebooks (ePub, PDF), Listen to audiobooks, Customizable reading experience, Bookmark and annotate, Speech synthesis for ebooks, Cross-device sync

**Features:** Vision Pro support

**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 Lis free?

Lis 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, Lis or Thorium Reader?

Lis is rated higher. Lis averages 5.0 out of 5 from 1 ratings, while Thorium Reader averages 3.4 from 12 ratings.

### Do Lis or Thorium Reader have ads?

Neither Lis nor Thorium Reader shows ads.

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

Lis ships an update every 3 months, and Thorium Reader every 3 weeks. Most recently, Lis was updated on October 7, 2026 and Thorium Reader on October 18, 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.*