# ReadGem vs AI Book Reader

The clearest difference is in-app purchases: ReadGem at none against AI Book Reader's 2. ReadGem also leads on update cadence (every 4 days vs monthly). AI Book Reader's advantage is iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. AI Book Reader sells 2 in-app purchases, starting at $7.99 per 7 days. ReadGem asks for nothing beyond the download.

ReadGem ships an update every 4 days, AI Book Reader monthly. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ReadGem | AI Book Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Monthly |
| Size | 27 MB | 40 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NEXTAOI, Inc](https://appshunter.io/developer/1748938499) | [Kanat Magdanov](https://appshunter.io/developer/1813805714) |

## What reviewers say

### ReadGem

[App page](https://appshunter.io/ios/app/readgem-read-learn-languages/id6770457167)

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

**In-app purchases:** none


### AI Book Reader

[App page](https://appshunter.io/ios/app/ai-book-reader/id6777117505)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $7.99 | per 7 days |
| Monthly Premium | $29.99 | per month |


## Frequently asked questions

### Is ReadGem free?

ReadGem 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 ReadGem or AI Book Reader have ads?

Neither ReadGem nor AI Book Reader shows ads.

### Which is updated more often, ReadGem or AI Book Reader?

ReadGem ships an update every 4 days, and AI Book Reader monthly. Most recently, ReadGem was updated on October 24, 2026 and AI Book Reader 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.*