iBunkoS vs BOOKSCAN for iPhone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iBunkoS
This app offers a realistic paper book reading experience on your iPhone, supporting various file formats like TXT, PDF, and comics. It includes features like a digital bookshelf, bookmarking with notes, and dictionary lookups.
- Realistic paper book interface
- Supports TXT, PDF, CBZ, CBR files
- 230+ built-in books and Aozora Bunko access
- Customizable bookshelf and bookmarks
- File transfer via USB, cloud, and servers
- Dictionary lookup integration
- Passcode lock for privacy
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iBunkoS provides you the best way to read novels, documents and comic books on iPhone. Thanks to a realistic interface, you can enjoy reading as you would with a real paper book. Reading on your iPhone is now easier than ever! This is a great iPhone app for all the book lovers! 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. iBunkoS 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 iPhone'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. 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 iBunkoS to suit your own preferences! You will find many more convenient functions and settings.
BOOKSCAN for iPhone
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.
- 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
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[詳細] 「BOOKSCAN」アプリは、BOOKSCANが提供する、お客様の蔵書をPDFファイル化したファイルをダウンロードをしてiPhone、iPadで楽しむ専用ツールです。iPhone、iPadそれぞれに合わせて最適化される「BOOKSCANチューニングラボ」ファイルが閲覧可能です。また、各ファイルごとに感想やメモを記録できるメモ機能や、気になるページにしおりを挟んで後から確認可能なしおり機能などを実装。いつでもどこでも自分の蔵書が好きなときに閲覧できる「BOOKSCAN」アプリ、新しい読書スタイルを体験してください。 [ご利用方法] 1.App Storeから「BOOKSCAN」アプリをダウンロードしてください。 2.会員登録後、「BOOKSCAN」アプリを起動し設定画面からメールアドレス・パスワードを入力してサインインしてください。 3.ダウンロードページ・管理番号一覧ページからファイルをダウンロードしてください。 4.ダウンロードすると、MY本棚に表示されますので、クリックしてお好みのファイルを閲覧してください。 [主な機能] ・iPhone、iPadそれぞれに合わせて最適化される「BOOKSCANチューニングラボ」ファイルをダウンロード可能 ・各ファイルごとに感想やメモを記録できるメモ機能 ・気になるページにしおりを挟んで後から確認可能なしおり機能 ・ページ下部にサムネイルリストを表示。開きたいページにダイレクトに遷移可能 ・明るさ調整 ・ページめくりアニメーション切り替え ・ピンチインによる拡大表示 ・画面長押しによる高速ページめくり ・綴じ方向の変更機能
Screenshots
Verdict
The clearest difference is price: BOOKSCAN for iPhone at Free against iBunkoS's $2.99. BOOKSCAN for iPhone also leads on update cadence (every 2 weeks vs every 2 months). iBunkoS's advantage is rating (4.4 vs 2.0) and review sentiment (58% vs 22%). On ratings volume, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
BOOKSCAN for iPhone is free to download; iBunkoS costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
iBunkoS holds the better App Store score, 4.4 against 2.0. Both are backed by a comparable volume of ratings — 9 and 4 respectively. Written reviews point the same way: 58% of iBunkoS's written reviews are positive against 22% of BOOKSCAN for iPhone's.
iBunkoS ships an update every 2 months, BOOKSCAN for iPhone every 2 weeks. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.
| Parameter | iBunkoS | BOOKSCAN for iPhone |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.4 (9 ratings) — better | 2.0 (4 ratings) |
| Positive reviews | 58.3% of reviews — better | 21.7% of reviews |
| Number of ratings | 9 — better | 4 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #168 — better | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 34 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | DWANGO Co., Ltd. | BOOKSCAN Inc. |
Customer experience
iBunkoS
BOOKSCAN for iPhone
In-app purchases
iBunkoS
No in-app purchases
BOOKSCAN for iPhone
No in-app purchases








