# AI Chat vs Codex Books

The clearest difference is update cadence: Codex Books at every 3 days against AI Chat's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AI Chat sells 4 in-app purchases, starting at $8.49 per 7 days and Codex Books sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

AI Chat ships an update every 3 weeks, Codex Books every 3 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | AI Chat | Codex Books |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (97 ratings)](https://appshunter.io/ios/app/ai-chat-talk-with-character/id6745932930/reviews)** | — |
| Number of ratings | **97** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Freemium | — |
| Size | 65 MB | 6 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Sviatoslav Mykhail Shevchenko](https://appshunter.io/developer/1858362981) | [Shinro OU](https://appshunter.io/developer/6780296771) |

## What reviewers say

### AI Chat

[App page](https://appshunter.io/ios/app/ai-chat-talk-with-character/id6745932930)

Create and converse with unique AI companions. Design their appearance, personality, and backstory to build deep, personalized connections. Explore diverse character styles and enjoy remarkably human-like conversations.

**Highlights:** Limitless character creation, Deep customization engine, Advanced AI chat, Diverse character styles, Intuitive interface

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Chatting 1 week | $8.49 | per 7 days |
| PRO Chatting 1 week + Trial | $8.49 | per 7 days |
| PRO Chatting 1 Year | $59.90 | per year |
| PRO Chatting 1 Year + Trial | $59.90 | per year |


### 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 AI Chat free?

AI Chat is free to download, with in-app purchases available.

### Is Codex Books free?

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

### Do AI Chat or Codex Books have ads?

Neither AI Chat nor Codex Books shows ads.

### Which is updated more often, AI Chat or Codex Books?

AI Chat ships an update every 3 weeks, and Codex Books every 3 days. Most recently, AI Chat was updated on October 28, 2026 and Codex Books on October 29, 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.*