# Codex Reader Early Access vs Guessbook

The clearest difference is in-app purchases: Guessbook at none against Codex Reader Early Access's 1. Codex Reader Early Access's advantage is iOS requirement (16.4 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Codex Reader Early Access sells 1 one-off in-app purchase. Guessbook asks for nothing beyond the download.

## The numbers

| Metric | Codex Reader Early Access | Guessbook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | — |
| Size | 104 MB | 4 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cameron Green](https://appshunter.io/developer/1493306411) | [Mubarak AlSabah](https://appshunter.io/developer/981017695) |

## What reviewers say

### Codex Reader Early Access

[App page](https://appshunter.io/ios/app/codex-reader-early-access/id6762022936)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Codex Premium | $6.99 | one-time |


### Guessbook

[App page](https://appshunter.io/ios/app/guessbook-discover-books/id6801600600)

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

**In-app purchases:** none


## Frequently asked questions

### Is Codex Reader Early Access free?

Codex Reader Early Access is free to download, with in-app purchases available.

### Is Guessbook free?

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

### Do Codex Reader Early Access or Guessbook have ads?

Neither Codex Reader Early Access nor Guessbook shows ads.

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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.*