# Chambers Library vs Thesius

The clearest difference is update cadence: Thesius at every 4 days against Chambers Library's every 15 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Chambers Library ships an update every 15 months, Thesius every 4 days. The most recent releases landed on September 26, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Chambers Library | Thesius |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 90 MB | 215 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hachette UK (Holdings)Limited](https://appshunter.io/developer/361205465) | [Seigneur Consults Limited](https://appshunter.io/developer/1469317635) |

## What reviewers say

### Chambers Library

[App page](https://appshunter.io/ios/app/chambers-library/id6463718329)

Access a curated collection of ebooks and audiobooks from Chambers, featuring reference works, poetry, and unique content. This app is designed for word enthusiasts seeking educational and inspiring literary experiences.

**Highlights:** Chambers Dictionary access, Brewer's Dictionary of Phrase & Fable, Poetry collection, Reference works, Audiobooks, Ebooks

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

**In-app purchases:** none


### Thesius

[App page](https://appshunter.io/ios/app/thesius/id6743826401)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chambers Library free?

Chambers Library is free to download, with no in-app purchases.

### Is Thesius free?

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

### Do Chambers Library or Thesius have ads?

Neither Chambers Library nor Thesius shows ads.

### Which is updated more often, Chambers Library or Thesius?

Chambers Library ships an update every 15 months, and Thesius every 4 days. Most recently, Chambers Library was updated on September 26, 2026 and Thesius on September 8, 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.*