# Book vs Loren AI

The clearest difference is device support: Loren AI at 2 against Book's —. Loren AI also leads on iOS requirement (15.1 vs 17.0). On price 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.

## The numbers

| Metric | Book | Loren AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Size | 1 MB | 43 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Maren Bellamy](https://appshunter.io/developer/1887168890) | [Yanqiong Feng](https://appshunter.io/developer/6771659434) |

## What reviewers say

### Book

[App page](https://appshunter.io/ios/app/book-train-your-knowledge/id6760989511)

**In-app purchases:** none


### Loren AI

[App page](https://appshunter.io/ios/app/loren-ai-audiobook-maker/id6771674366)

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

**In-app purchases:** none


## Frequently asked questions

### Is Book free?

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

### Is Loren AI free?

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

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*