# BOOKSCAN for iPhone vs 読書尚友

The clearest difference is rating: 読書尚友 at 4.0 against BOOKSCAN for iPhone's 2.0. 読書尚友 also leads on review sentiment (50% vs 22%). BOOKSCAN for iPhone's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 読書尚友 sells 1 one-off in-app purchase. BOOKSCAN for iPhone asks for nothing beyond the download.

読書尚友 holds the better App Store score, 4.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 22% of BOOKSCAN for iPhone's written reviews are positive against 50% of 読書尚友's.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 19, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | BOOKSCAN for iPhone | 読書尚友 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/bookscan-for-iphone/id441420566/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/id1579254502/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 21.7% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 36 MB | 45 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BOOKSCAN Inc.](https://appshunter.io/developer/441217651) | [hishida](https://appshunter.io/developer/314082596) |

## 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


### 読書尚友

[App page](https://appshunter.io/ios/app/id1579254502)

This app is a Japanese vertical text viewer for iOS, offering access to over 10,000 works from Aozora Bunko and supporting local files. It handles various formats and provides customization options for a comfortable reading experience.

**Highlights:** Supports various file formats (text, HTML, PDF, ePub, images, etc.), Automatic character code detection, Browse Aozora Bunko by author, title, genre, and ranking, Download books directly from Aozora Bunko, Customizable font, size, background, and page direction, In-app search and bookmarking

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告削除 | $1.99 | one-time |


## Frequently asked questions

### Is BOOKSCAN for iPhone free?

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

### Is 読書尚友 free?

読書尚友 is free to download, with in-app purchases available.

### Which has better reviews, BOOKSCAN for iPhone or 読書尚友?

読書尚友 is rated higher. BOOKSCAN for iPhone averages 2.0 out of 5 from 4 ratings, while 読書尚友 averages 4.0 from 1 ratings.

### Do BOOKSCAN for iPhone or 読書尚友 have ads?

読書尚友 shows ads; BOOKSCAN for iPhone does not.

### Which is updated more often, BOOKSCAN for iPhone or 読書尚友?

BOOKSCAN for iPhone ships an update every 2 weeks, and 読書尚友 every 2 weeks. Most recently, BOOKSCAN for iPhone was updated on September 19, 2026 and 読書尚友 on September 21, 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.*