iBunkoS vs ぎょうせいの電子書籍
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
Read full descriptionHide full description
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.
ぎょうせいの電子書籍
Read full descriptionHide full description
当社刊行の電子書籍を閲覧できる iOS 対応ビューワーです。 無料でダウンロードできます。 電子書籍は、当社ショッピングサイトにて、お買い求めください。 お買い上げになられた電子書籍は、アプリ内の本棚に並び、Web書庫を通じて同期されます。 ◆アプリの機能 タップでメニュー表示、ピンチイン/アウトで拡大・縮小、スライドでページ送り・戻しが行えます。 メニューから、目次やページのサムネイルが表示できます。 本棚にラベルをつけて、ジャンルごとに本棚を作って、本を整理することができます。 ◆Web書庫について 購入された電子書籍は、Web書庫を通じて、複数のデバイスで共有できます。 共有したいデバイスから、Web書庫をタップし、ご登録時のメールアドレスに、本人確認用のPINコードが送信されます。 10分間有効なPINコードを入れると、Web書庫から、電子書籍をダウンロードできます。 ◆継続性について ご購入された電子書籍は、デバイスから削除されても、購入履歴が残っている限り、いつでも再ダウンロードが可能です。 デバイスを買い換えたり、共有台数が上限に達したりした場合でも、リセットを行えば、改めて、新しいデバイスにダウンロードできます。
Screenshots
Verdict
The clearest difference is price: ぎょうせいの電子書籍 at Free against iBunkoS's $2.99. iBunkoS's advantage is chart position (#170 vs unranked) and iOS requirement (12.0 vs 15.6). On update cadence, 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
ぎょうせいの電子書籍 is free to download; iBunkoS costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 22, 2026 and August 30, 2026 respectively.
| Parameter | iBunkoS | ぎょうせいの電子書籍 |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.4 (9 ratings) — better | — |
| Positive reviews | 58.3% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #170 — better | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 34 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | DWANGO Co., Ltd. | GYOSEI CORPORATION |
In-app purchases
iBunkoS
No in-app purchases
ぎょうせいの電子書籍
No in-app purchases









