# Booki AI vs ReadAI Smart

The clearest difference is in-app purchases: Booki AI at none against ReadAI Smart's 2. Booki AI also leads on update cadence (every 4 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ReadAI Smart sells 2 in-app purchases, starting at $6.99 per month. Booki AI asks for nothing beyond the download.

Booki AI ships an update every 4 days, ReadAI Smart fortnightly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Booki AI | ReadAI Smart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Size | 3 MB | 55 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Noah M](https://appshunter.io/developer/1858427231) | [Vladislav Condratiev](https://appshunter.io/developer/1884070455) |

## What reviewers say

### Booki AI

[App page](https://appshunter.io/ios/app/booki-ai/id6757681838)

**Features:** macOS Compatibility

**In-app purchases:** none


### ReadAI Smart

[App page](https://appshunter.io/ios/app/readai-smart/id6761624062)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Base Monthly | $6.99 | per month |
| Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is Booki AI free?

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

### Is ReadAI Smart free?

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

### Do Booki AI or ReadAI Smart have ads?

Neither Booki AI nor ReadAI Smart shows ads.

### Which is updated more often, Booki AI or ReadAI Smart?

Booki AI ships an update every 4 days, and ReadAI Smart fortnightly. Most recently, Booki AI was updated on October 31, 2026 and ReadAI Smart on October 31, 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.*