# iBunkoHD

> Digital book reader for novels, documents, and comics with realistic page-turning. (iPhone/iPad app by DWANGO Co., Ltd..)

- Source: https://appshunter.io/ios/app/ibunkohd/id369111608 (this page in markdown: same URL + `.md`)
- Developer: [DWANGO Co., Ltd.](https://appshunter.io/developer/297539595)
- Category: Books, Utilities
- Price: $6.99
- Rating: 4.00/5 from 7 App Store ratings · 141 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 35 MB
- Languages: American English, Japanese, Chinese (Simplified, China)
- Released: 2010-05-09
- Data updated: 2026-08-26
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ibunkohd/id369111608/reviews.md

## What is iBunkoHD?

iBunkoHD provides you the best way to read novels, documents and comic books on iPad.
Thanks to a realistic interface, you can enjoy reading as you would with a real paper book. Reading on your iPad is now easier than ever!

This is a great iPad app for all the book lovers!

Won Good Design Award 2010
Ranked #1 in the Japanese App Store in 2010

Read books and comics in vertical setting with comfort
・Support both horizontal (left open) and vertical (right open) writings.
・The app automatically detects the binding direction of a PDF document.

Double page spread and page effect
・When viewed landscape mode, the pages switch to the double page spread. The pages containing landscape format images are automatically treated as a double page spread.
・You can "flip" pages just like reading a real paper book.

Feature about 230 built-in books and "Aozora Bunko"
・ You can download a book with simple controls from "Aozora Bunko", the Japanese digital library that provides copyright-free Japanese literary works.
・ The app comes with the well-known books from "Aozora Bunko".

"Bookshelf" function
・Create a bookshelf as you need.
・You can easily choose a book you'd like to read by browsing the book covers displayed on the shelf.

"Bookmark" function
・You can place as many bookmarks as you want and add notes on it.
・Select text as a bookmark in order to highlight the sentence.

Supported file formats.
iBunkoHD supports the following file formats as books:
- .txt .pdf
- .zip .rar (containing .txt or .jpg/.png files)
- .cbz .cbr

Transfer files
・Transfer the files using iTunes 'File Sharing' via the USB cable as well as via Dropbox, SkyDrive, pogoplug, Box, SugarSync. The app also supports both the WebDAV and the FTP servers.

Utilize data from PDF
・Support the table of contents or hyperlinks on the file.
・Select and search words (when the data contains text).
・Using our own processing technology, app can select a Japanese words smoothly.

Smart screen design removing the white space
・Eliminate unnecessary white space for better readability on the screen.

Thumbnails of pages show quick reference for where you'd like to read
・List the page thumbnails at the bottom of the screen or in the full screen.
・The page with bookmarks will be attached a mark. You can also display only the page thumbnails which contain bookmarks.

History back pages
・Viewed pages are saved in history so you can easily go back to the previous page.

Look up words in the dictionary 
・You can use the iPad's built-in dictionary as well as other dictionary apps that support custom URL schemes.
・Just select text and tap the button to look up the word.

Support Bluetooth keyboards
・You can read without touching the screen by using the compatible device. 

Passcode lock
・You can set passcode lock on specific bookshelves or the "folder" screen that stored transferred files.

Various page settings
・Available various settings such as enable/disable the flipping effect or change the position of the tap control.
・Customize your iBunkoHD to suit your own preferences!

You will find many more convenient functions and settings.

## Key features

- Realistic paper book interface
- Vertical and horizontal writing support
- Double page spread view
- Built-in Aozora Bunko library access
- Customizable bookshelf organization
- Bookmark with notes and text selection
- Multiple file format support (.txt, .pdf, .zip, .rar, .cbz, .cbr)

## Recent user reviews (10 of 141)

All indexed reviews: https://appshunter.io/ios/app/ibunkohd/id369111608/reviews.md

### 4/5 — 本棚登録出来なくなった

*2026-07-22, version 3.4.44*

SMB経由でダウンロードは出来るが、複数登録処理を行っても本棚に表示されない
修正リリースされてるが、直ってない

### 2/5 — 回転ロック

*2026-07-20, version 3.4.43*

最近OS、iPad ProM4を使っていますが、ついにブックが一括登録できない不具合が発生しました。このアプリの意味がない…

至急不具合修正をお願いしたいです。

あと、アプリから、不具合報告できなくなっていますね。ページが表示されません。

### 1/5 — 本棚一括登録ができなくなった

*2026-07-19, version 3.4.43*

2013年のiPad3から使いつ続けてきたけど、
突然本棚の一括登録ができなくなって
泣く泣くアプリを変えることにした
Comicglassにした
13年使ってきたから慣れ親しんでたから
使えなくなったの辛い

### 2/5 — NASがエラー

*2026-07-18, version 3.4.43*

NAS格納ファイルを追加しようとしても、error cannot log in とでます。なおPCからはアクセスできるのに、iPadの読書アプリi文庫HDから入れません

### 2/5 — 有料なのに微妙

*2026-02-01, version 3.4.42*

SideBooksからこちらに移行しようとしたが、iCloudから一括で本棚登録出来ない。
無料のSideBooksより優れている点は読取スムーズなだけ。
態々、課金して損した。
無料のSideBooksお勧めです。

### 1/5 — FTP接続でログイン後即ログアウトされる

*2026-01-13, version 3.4.42*

本日iPadを買い替えて最新verにてQNAPNASにFTPでログインしたところ、ログイン後にフォルダが表示されませんでした。サーバーログを確認するとログイン後に即ログアウトしているログが残っていました。
他のFTPクライアントを使うとちゃんと表示されるため、このアプリに原因があると考えられます。
本を読むにはやはりこのアプリでなくてはと思っていますので、ぜひ修正をお願いします。

### 1/5 — Google Drive

*2026-01-11, version 3.4.42*

Google Drive との接続ができなくなっていますが、回復の見込みはないのでしょうか？
長いこと愛用してきただけに、残念です。

### 5/5 — iPadOS 26での不具合

*2025-11-27, version 3.4.41*

iPadOS 26へアップデートしたところ、ダークモードの時に上部の本棚名表示の部分が、本棚を縦にスクロールすると白背景黒文字に変化し本棚との輝度差が大きくなって見づらく感じます。 iPadOS17では黒背景が暗めの灰色に白文字になるだけで問題ありません。iPadOS26でも同じ動作になるよう、できることなら改善をお願いします。

### 5/5 — 大変満足していますが、最新のOSで不具合あり

*2025-11-08, version 3.4.41*

iPadOS 26.0.1にアップグレードしてから、画面下部のスクロールする頁の欄が稀に少し上に持ち上がる不具合が見受けられます。アプリ内の「よくある質問→その他のご意見・ご要望」の項目をタップしてもリンク切れで不具合の報告ができないため、この場でご報告を致しました。

### 4/5 — 落ちる

*2025-10-19, version 3.4.41*

便利なアプリでPDFの閲覧など重宝していますがピンチで拡大すると頻繁にアプリが落ちます。

## Frequently asked questions about iBunkoHD

### What kind of content can I read with iBunkoHD?

iBunkoHD is designed for reading novels, documents, and comic books. It supports various file formats including .txt, .pdf, .zip, .rar (containing .txt or .jpg/.png), .cbz, and .cbr, making it versatile for different types of digital content.

### How do I get books into iBunkoHD?

You can transfer files using iTunes 'File Sharing' via a USB cable. Additionally, the app supports transfers through cloud services like Dropbox, SkyDrive, pogoplug, Box, SugarSync, as well as WebDAV and FTP servers. You can also download books directly from 'Aozora Bunko', a Japanese digital library.

### What makes the reading experience realistic?

The app features a realistic interface that mimics reading a physical paper book. This includes a page-flipping effect, double-page spreads in landscape mode, and smart screen design that removes unnecessary white space for improved readability.

### Can I organize my books and find them easily?

Yes, iBunkoHD includes a 'Bookshelf' function where you can create custom shelves to organize your books. Books are displayed by their covers, allowing for easy browsing and selection of what you want to read.

### Is iBunkoHD compatible with all iPads?

The application description specifically mentions it is an 'iPad app' and highlights features like 'realistic interface' and 'double page spread' which are optimized for the iPad's screen size and capabilities. While specific iOS version compatibility isn't detailed, it is designed for the iPad platform.

## Version history (last 5 releases)

### 3.4.45 — 2026-07-23

- some bug fxi

### 3.4.44 — 2026-07-21

- some bug fix

### 3.4.43 — 2026-07-14

- some bug fix
- support smb2

### 3.4.42 — 2026-01-08

- Minor bug fixes

### 3.4.41 — 2025-09-29

- Minor bug fixes

## Apps similar to iBunkoHD

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [Namo eBook Reader](https://appshunter.io/ios/app/namo-ebook-reader/id1501449940) | 2.0 (2) | Free | Books |
| [青の書架 - 高機能な青空文庫リーダー](https://appshunter.io/ios/app/id6754846395) | — | Free | Books |
| [SORARI - nonAD](https://appshunter.io/ios/app/sorari-nonad/id1587550683) | — | $1.99 | Books |
| [BOOKSCAN for iPad](https://appshunter.io/ios/app/bookscan-for-ipad/id441217648) | 2.3 (3) | Free | Books |
| [ComicShare - Streaming Reader](https://appshunter.io/ios/app/comicshare-streaming-reader/id642097030) | 4.4 (48) | $3.99 | Books |

## More apps by DWANGO Co., Ltd.

- [ニコニコ動画-アニメやボカロ動画が見放題の動画アプリ](https://appshunter.io/ios/app/id307764057)
- [iBunkoS](https://appshunter.io/ios/app/ibunkos/id418102178)
- [Vocacolle](https://appshunter.io/ios/app/vocacolle/id421753493)
- [ニコニコ生放送 ライブ配信/ゲーム配信アプリ](https://appshunter.io/ios/app/id823479272)
- [ZEN Study(旧N予備校) 学ぶ全世代へ ゼンスタディ](https://appshunter.io/ios/app/zen-studyn/id1082669389)

All apps by DWANGO Co., Ltd.: https://appshunter.io/developer/297539595

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*