# Booki AI vs SlowRead

The clearest difference is in-app purchases: Booki AI at none against SlowRead's 3. SlowRead's advantage is iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SlowRead sells 3 in-app purchases, starting at $3.99 per month. Booki AI asks for nothing beyond the download.

Booki AI ships an update every 4 days, SlowRead every 9 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Booki AI | SlowRead |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 9 days |
| Size | 3 MB | 80 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Noah M](https://appshunter.io/developer/1858427231) | [T-PLUS Ltd](https://appshunter.io/developer/1881859700) |

## What reviewers say

### Booki AI

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

**Features:** macOS Compatibility

**In-app purchases:** none


### SlowRead

[App page](https://appshunter.io/ios/app/slowread/id6759947443)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SlowRead Pro | $3.99 | per month |
| SlowRead Pro | $29.99 | per year |
| SlowRead Pro Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Booki AI free?

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

### Is SlowRead free?

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

### Do Booki AI or SlowRead have ads?

Neither Booki AI nor SlowRead shows ads.

### Which is updated more often, Booki AI or SlowRead?

Booki AI ships an update every 4 days, and SlowRead every 9 days. Most recently, Booki AI was updated on October 31, 2026 and SlowRead 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.*