# GutenbergListen vs Codex Books

The clearest difference is in-app purchases: GutenbergListen at none against Codex Books's 1. Codex Books's advantage is update cadence (every 5 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Codex Books sells 1 one-off in-app purchase. GutenbergListen asks for nothing beyond the download.

GutenbergListen ships an update every 6 weeks, Codex Books every 5 days. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | GutenbergListen | Codex Books |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Size | 2 MB | 5 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Frank D Ducrest](https://appshunter.io/developer/1883514072) | [Shinro OU](https://appshunter.io/developer/6780296771) |

## What reviewers say

### GutenbergListen

[App page](https://appshunter.io/ios/app/gutenberglisten/id6764610090)

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

**In-app purchases:** none


### Codex Books

[App page](https://appshunter.io/ios/app/codex-books/id6794109669)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Library (Lifetime) | $5.99 | one-time |


## Frequently asked questions

### Is GutenbergListen free?

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

### Is Codex Books free?

Codex Books is free to download, with in-app purchases available.

### Do GutenbergListen or Codex Books have ads?

Neither GutenbergListen nor Codex Books shows ads.

### Which is updated more often, GutenbergListen or Codex Books?

GutenbergListen ships an update every 6 weeks, and Codex Books every 5 days. Most recently, GutenbergListen was updated on October 6, 2026 and Codex Books on October 7, 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.*