# BookPro Reader vs Librai

The clearest difference is in-app purchases: BookPro Reader at none against Librai's 2. BookPro Reader also leads on iOS requirement (13.0 vs 17.2). Librai's advantage is update cadence (every 2 days vs every 31 months). On price, ads and device support there is nothing between them.

Both are free to download. Librai sells 2 in-app purchases, starting at $4.99 per month. BookPro Reader asks for nothing beyond the download.

BookPro Reader ships an update every 31 months, Librai every 2 days. Both last shipped on November 7, 2026.

## The numbers

| Metric | BookPro Reader | Librai |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 2 days** |
| Size | 20 MB | 65 MB |
| Requires iOS | **13.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Prajuab Sahaporn-udomgarn](https://appshunter.io/developer/1597075593) | [Shivam Kumar Sanjiv Dev](https://appshunter.io/developer/1695129755) |

## What reviewers say

### BookPro Reader

[App page](https://appshunter.io/ios/app/bookpro-reader/id6450408133)

**Features:** macOS Compatibility

**In-app purchases:** none


### Librai

[App page](https://appshunter.io/ios/app/librai-ai-book-and-pdf-reader/id6761315801)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Librai Pro | $4.99 | per month |
| Librai Pro | $39.99 | per year |


## Frequently asked questions

### Is BookPro Reader free?

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

### Is Librai free?

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

### Do BookPro Reader or Librai have ads?

Neither BookPro Reader nor Librai shows ads.

### Which is updated more often, BookPro Reader or Librai?

BookPro Reader ships an update every 31 months, and Librai every 2 days. Most recently, BookPro Reader was updated on November 7, 2026 and Librai on November 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*