# KeyReader vs AI Book Reader

The clearest difference is device support: AI Book Reader at 3 against KeyReader's 1. AI Book Reader also leads on iOS requirement (15.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. KeyReader sells 3 in-app purchases, starting at $2.99 per month and AI Book Reader sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

KeyReader ships an update every 3 weeks, AI Book Reader monthly. Both last shipped on October 7, 2026.

## The numbers

| Metric | KeyReader | AI Book Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 7 MB | 40 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Oleg Strigunov](https://appshunter.io/developer/1705947979) | [Kanat Magdanov](https://appshunter.io/developer/1813805714) |

## What reviewers say

### KeyReader

[App page](https://appshunter.io/ios/app/keyreader/id6762510058)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Reading | $2.99 | per month |
| Unlimited Reading | $19.99 | per year |
| Unlimited Reading | $49.99 | one-time |


### 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 KeyReader free?

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

### Is AI Book Reader free?

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

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

Neither KeyReader nor AI Book Reader shows ads.

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

KeyReader ships an update every 3 weeks, and AI Book Reader monthly. Most recently, KeyReader was updated on October 7, 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.*