# BOOKSCAN for iPhone vs KaLib

The clearest difference is update cadence: BOOKSCAN for iPhone at monthly against KaLib's every 2 months. KaLib's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BOOKSCAN for iPhone ships an update monthly, KaLib every 2 months. Both last shipped on October 6, 2026.

## The numbers

| Metric | BOOKSCAN for iPhone | KaLib |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (4 ratings)](https://appshunter.io/ios/app/bookscan-for-iphone/id441420566/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 20.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | — |
| Size | 36 MB | 25 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BOOKSCAN Inc.](https://appshunter.io/developer/441217651) | [Kyorinsha Co.,Ltd](https://appshunter.io/developer/482525161) |

## What reviewers say

### BOOKSCAN for iPhone

[App page](https://appshunter.io/ios/app/bookscan-for-iphone/id441420566)

Access your digitized book collection on your iPhone or iPad. This tool allows you to download and view PDF files of your books, with features for adding notes, bookmarks, and adjusting display settings for a personalized reading experience.

**Highlights:** Download optimized book PDFs, Add notes and memos to files, Bookmark important pages, Thumbnail page navigation, Adjust brightness and page turn animation, Zoom and fast page turning, Change binding direction

**Features:** Vision Pro support

**In-app purchases:** none


### KaLib

[App page](https://appshunter.io/ios/app/kalib/id482525158)

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

**In-app purchases:** none


## Frequently asked questions

### Is BOOKSCAN for iPhone free?

BOOKSCAN for iPhone is free to download, with no in-app purchases.

### Is KaLib free?

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

### Do BOOKSCAN for iPhone or KaLib have ads?

Neither BOOKSCAN for iPhone nor KaLib shows ads.

### Which is updated more often, BOOKSCAN for iPhone or KaLib?

BOOKSCAN for iPhone ships an update monthly, and KaLib every 2 months. Most recently, BOOKSCAN for iPhone was updated on October 6, 2026 and KaLib on October 6, 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.*