# Librarian vs QR Code & Bar Code Scanner .

The clearest difference is device support: QR Code & Bar Code Scanner . at 3 against Librarian's 1. QR Code & Bar Code Scanner . also leads on iOS requirement (15.1 vs 18.6). On price, ads and in-app purchases there is nothing between them.

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

## The numbers

| Metric | Librarian | QR Code & Bar Code Scanner . |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 47.1% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | — |
| Monetization | Ad-supported | — |
| Size | 8 MB | 40 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [shinichi tanimoto](https://appshunter.io/developer/338978015) | [kranthikumar karanam](https://appshunter.io/developer/1857959157) |

## What reviewers say

### Librarian

[App page](https://appshunter.io/ios/app/librarian-library-search/id383815613)

Easily find libraries and books across Japan. Search by map, area, or your current location, and look for books by keyword or genre. Check book availability at nearby libraries.

**Highlights:** Search libraries by map, Search libraries by area, Search libraries by current location, Search books by keyword, Search books by genre, Check book availability

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

**In-app purchases:** none


### QR Code & Bar Code Scanner .

[App page](https://appshunter.io/ios/app/qr-code-and-bar-code-scanner/id6779721642)

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

**In-app purchases:** none


## Frequently asked questions

### Is Librarian free?

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

### Is QR Code & Bar Code Scanner . free?

QR Code & Bar Code Scanner . is free to download, with no in-app purchases.

### Do Librarian or QR Code & Bar Code Scanner . have ads?

Both Librarian and QR Code & Bar Code Scanner . show ads.

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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.*