Comparison

iBunkoS vs Readabic

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Currently charting
Read 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.

About

Readabic

Features
Read full description

Read it in Arabic—Readabic delivers rich summaries of the world’s most impactful books with clarity and engagement at the core. Enjoy focused summaries that highlight key ideas across three complementary formats: clean text, visual explainers (infographics, charts, mind maps), and professional audio you can enjoy anytime—with offline downloads. Why Readabic? Quality first: Curated, high-impact titles with meaningful coverage. Deeper text coverage: Up to 35–50% of the book’s size. Visual clarity: Infographics, mind maps, and comparisons that make ideas stick. Premium audio: Seamless listening with offline listening. Smart experience: Key points, clear structure, and progress tracking. All-access subscription: For the price of one book, unlock a full library of thousands of pages, minutes of audio, and visuals. Key Features: Three formats: Text / Visual / Audio Offline audio downloads Personalized recommendations Regular library updates Cross-device sync & progress tracking Notes: Currently Arabic; more languages coming soon. Summaries accelerating understanding and enriching the reading journey. Privacy Policy: https://readabic.app/privacy.html Terms & Conditions: https://readabic.app/terms.html

Screenshots

iBunkoS4 screens
Readabic4 screens

Verdict

The call

The clearest difference is price: Readabic at Free against iBunkoS's $2.99. iBunkoS's advantage is in-app purchases (none vs 6) and chart position (#171 vs unranked). On update cadence, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Readabic is free to download; iBunkoS costs $2.99 up front. Readabic sells 6 in-app purchases, starting at $19.99 per month. iBunkoS asks for nothing beyond the download.

UpkeepUpdate frequency

iBunkoS ships an update every 2 months, Readabic every 4 months. The most recent releases landed on September 22, 2026 and September 12, 2026 respectively.

Scorecard3 real differences · 8 level
iBunkoS versus Readabic: the parameters behind the verdict, then further details
ParameteriBunkoSReadabic
Price$2.99Free — better
Rating4.4 (9 ratings) — better—
Positive reviews58.3% of reviews—
Number of ratings9 — better—
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
Best chart rank#171 — better—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better13.0
Further details — not scored
Size34 MB43 MB
Age rating4+4+
DeveloperDWANGO Co., Ltd.Obai Ibrahim

In-app purchases

None

iBunkoS

No in-app purchases

6 purchases

Readabic

Subscriptions2
  • premium monthly3 Days trial$19.991 Month
  • Premium Yearly$59.991 Year
One-time4
  • Basic quality text, graphic, audio$2.99
  • Better quality text, graphic, audio$3.99
  • Best quality text, graphic, audio$5.99
Show 1 more
  • Premium 10-Years$99.99

Questions

Is iBunkoS free?
iBunkoS costs $2.99, with no in-app purchases.
Is Readabic free?
Readabic is free to download, with in-app purchases available.
Do iBunkoS or Readabic have ads?
Neither iBunkoS nor Readabic shows ads.
Which is updated more often, iBunkoS or Readabic?
iBunkoS ships an update every 2 months, and Readabic every 4 months. Most recently, iBunkoS was updated on September 22, 2026 and Readabic on September 12, 2026.

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