# Thorium vs AI Book Reader

The clearest difference is in-app purchases: Thorium at none against AI Book Reader's 3. Thorium also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. AI Book Reader sells 3 in-app purchases, starting at $2.99 per 7 days. Thorium asks for nothing beyond the download.

## The numbers

| Metric | Thorium | AI Book Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | — |
| Size | 157 MB | 23 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CBL solutions bvba](https://appshunter.io/developer/1396744719) | [out thinking limited](https://appshunter.io/developer/531344384) |

## What reviewers say

### Thorium

[App page](https://appshunter.io/ios/app/thorium/id1396744720)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Book Reader

[App page](https://appshunter.io/ios/app/ai-book-reader-text-to-speech/id6757379355)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $2.99 | per 7 days |
| Monthly Premium | $9.99 | per month |
| Yearly Premium | $29.99 | per year |


## Frequently asked questions

### Is Thorium free?

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

### Is AI Book Reader free?

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

### Do Thorium or AI Book Reader have ads?

AI Book Reader shows ads; Thorium does not.

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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.*