# ShuBook 2M — Calibre+OPDS friendly reader

> A feature-rich book reader and organizer with Calibre and OPDS support. (iPhone/iPad app by Ambibma Limited.)

- Source: https://appshunter.io/ios/app/shubook-2m/id950017941 (this page in markdown: same URL + `.md`)
- Developer: [Ambibma Limited](https://appshunter.io/developer/385897282)
- Category: Books, Education
- Price: $0.99 (on sale, was $5.99)
- Rating: 4.70/5 from 10 App Store ratings · 18 written reviews indexed
- Age rating: 17+
- Requires: iOS 9.0 · 5 MB
- Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2014-12-18
- Data updated: 2026-07-04
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/shubook-2m/id950017941/reviews.md

## What is ShuBook 2M?

ShuBook 2M is an OPDS and Calibre friendly book reader and organizer.

■ READING BOOKS

①　Read DRM-free and password-free books of 3 fluid-layout formats and 5 fixed-layout formats

②　Read fluid-layout formats (EPUB, TXT, UPDB) in horizontal page-turning mode

③　Read fixed-layout formats (PDF, RTF, DOC, XLS, PPT) in vertical page-scrolling mode

④　Read in both portrait and landscape orientation

⑤　Long press on text to lookup built-in dictionary, read aloud, and copy

⑥　Sync book reading progress via AirDrop and email 

⑦　Support all compatible iPhone and iPad models at native screen resolution

⑧　Provide an option to auto-reopen last book read at the page you left off for fluid-layout formats and fixed-layout formats

For fluid-layout formats:

①　Customize various layout parameters (font family, font size, text alignment, page margin, paragraph indentation, paragraph spacing, line spacing, letter spacing, hyphenation) and apply color themes

②　Import unlimited number of user font files (TTF, TTC, OTF) via AirDrop, DropBox, Safari, Mail

③　Provide 16 built-in eye-pleasing color themes and 3 customizable color themes, where you can control background, text, heading and link colors

④　Jump to any page quickly and precisely via page slider with an unobtrusive reading progress line at the bottom of the page

⑤　Offer Night mode and brightness control by vertical swipe to complement iOS system brightness control via Control Center

⑥　Perform fast full text search and automatically save recent searches

⑦　Save an unlimited number of bookmarks per book

⑧　Long press on text to lookup built-in dictionary, read aloud, copy, search (and correct for UPDB)


■ MANAGING BOOKS

①　Manage easily thousands of books in Library

②　Group books by titles, authors, tags, and clusters with reading progress display

③　Group books by authors hierarchically in Library allowing multiple authors per book

④　Group books by tags hierarchically in Library allowing multiple tags per book

⑤　Group books by clusters hierarchically in Library allowing adding/removing/editing of clusters and re-ordering of clusters and their books

⑥　Search books in Library by title or author, or with help of the index bar

⑦　Edit book info, including title, author, tags and book cover image, for which you can choose from Album and online sources


■ GETTING BOOKS IN AND OUT

①　Provide convenient access to millions of free ebooks from multiple sources (HTML websites and OPDS catalogs), including Dropbox and websites you input

②　Perform TXT encoding auto-detection and TXT Smart Break after download/import of TXT files

③　Support downloading tags of books from OPDS catalogs

④　Smart batch download from calibre (and other OPDS servers on LAN) with an option to skip downloading books that are already in Library

⑤　Support iTunes File Sharing to import and export books

⑥　Send and receive books by email

## Key features

- Supports EPUB, PDF, DOC, TXT, and more
- Customizable reading layout and themes
- Night mode and brightness control
- Organize books by title, author, and tags
- Import books from OPDS catalogs and cloud storage
- Sync reading progress via AirDrop and email
- Full text search and bookmarking

## Recent user reviews (10 of 18)

All indexed reviews: https://appshunter.io/ios/app/shubook-2m/id950017941/reviews.md

### 5/5 — Very happy

*2023-04-26*

Love shu books. The best reading app I have used. Like being able to change background to make it easier to read at night. Thanks

### 3/5 — Very good

*2022-09-08*

This is a very good e-book reader. It’s not perfect, but I like it better than Apple Books and the Kindle app. Unfortunately it seems that this app has been abandoned, with no updates in years, and some annoying issues with layout on a modern iPhone, so I lowered my score from 4⭐️ to 3.

**Developer response:** Please note that the bug reported above only occurs when "Always Show Status Bar" is turned on AND "Page Margins" is set to be smaller than "Medium" (default). It will be fixed soon. In the meanwhile, do feel safe to update unless you're picky on that specific combination.

### 5/5 — Best reading app

*2022-07-29*

I love the shubook app. It’s very versatile and very user friendly. The only thing missing now is continuous scrolling. That would make it even better. Any chance of that?

### 5/5 — Почему нет русских книг?

*2019-10-10*

До этого читала русские книги на бесплатной версии, но так как там ограничение на скачивание книг решила купить платную версию, а там книги только на английской языке. 
Добавьте пожалуйста русские книги. Флибуста.

Спасибо, эту проблему исправили!
Но появилась новая. Никакая из русских книг не качается ни в формате EPub ни в RTF!
Прошу вас исправьте пожалуйста.

Спасибо огромное за оперативность!
Все исправили, что просила буквально на следующий день!

### 5/5 — Excellent, easy to use, well supported.

*2019-06-09, version 3.1*

I’ve used Shubook for years now. It’s proven to be a very nice to use ereader and library app with excellent features. I like being able to customize the look and feel, and vertical swipe for brightness control is genius. Day/night mode is one touch away (unlike some other big players who’s app is fussy). 
Library tools are great and being able to edit book covers and descriptions in the app is helpful. Import and export is easy and preserves metadata. 
Pay the money, buy the app. It’s very good indeed.

### 5/5 — Great

*2019-04-30*

My go to epub reader. Works great and good developer support.

### 4/5 — Скидывается на последнюю страницу

*2018-11-22*

Так и не исправили проблему с сбрасываем PDF книг на последнюю страницу книги, тоесть не запоминает страницу на которой остановился читать, ИСПРАВЬТЕ уже,меня только беспокоит эта проблема. ИСПРАВЬТЕ, ПОЧЕМУ ОТНОСИТЕСЬ К ПОЛЬЗОВАТЕЛЯМ НЕУВАЖИТЕЛЬНО, У УСТАЛ УЖЕ ОТ ТОГО ЧТО ВСЕГДА СБРАСЫВАЕТСЯ СТРАНИЦА НА КОТОРОЙ Я ЗАКОНЧИЛ ЧИТАТЬ

**Developer response:** We can't reproduce your problem. When a PDF book is re-opened, it is indeed opened at the page when it was last closed.

### 3/5 — Apart from one bug I hope they’ll fix, I love it

*2018-04-08*

I bought ShuBook 2M as a replacement for my beloved, now defunct Stanza, after trying many other ePub readers. I love it and have made it my default reader on my phone: it is unfussy, versatile, does not encrypt my books (and enables me to share them) and I have only ONE gripe, which I hope will be fixed: often, the top and bottom line of a page are sliced so that I have to scroll/“turn” the page to see the bottom of the characters. This is annoying so please solve it, and then I’ll rate you the 5 stars you deserve! 😊

### 5/5 — Great App

*2018-03-30*

I've been enjoying Shubook for years. It does everything I need it to do,and it does it simply. I had a problem with the latest version, but the developer replied right away with a fix, so I can say I'm enjoying it again very much.

**Developer response:** You may open Book Settings and turn off System Screen Brightness to get back your old preferred setting. As for the "bad color themes" issue, we can't reproduce the bug. Can you send us a screenshot with your iPhone model and iOS version number? Thanks. In fact, we're doing an update in a few days. So you'd better email us soon in order to catch the next train. :-)

### 4/5 — Forever User Suggests Improvements

*2017-08-20*

I have used ShuBook almost from its inception, through each subsequent version, and right up to the current 2M version. I love its simplicity, the ability to download ePub & PDF books from any source, add tags, download book covers, sort by author, change fonts, change to nighttime reading, bookmark, etc. etc. It's never eaten or lost a single word, much less a book and I've read thousands and store thousands of books. 

Why only 4 stars? It continues to lag behind all other major e-readers by lacking the ability to highlight text and to add your own notes for future reference. This is a major setback for me. I'm a voracious reader and getting older. My memory isn't what it once was. I hate that this otherwise perfect e-reader has an almost unforgivable flaw. I also use Kindle because of their proprietary e-books. I love the highlighting and note writing, but find it unwieldy as a library for all my e-books. Please, please add these indispensable features!!!

Why do I continue to use it over Marvin, which I also have? Marvin is a beautiful, full featured, overblown memory hog that only lets me upload from certain sources. ShuBooks 2M is a very lean memory user. That's a priority for me.

## Frequently asked questions about ShuBook 2M

### What book formats does ShuBook 2M support?

ShuBook 2M supports 3 fluid-layout formats (EPUB, TXT, UPDB) and 5 fixed-layout formats (PDF, RTF, DOC, XLS, PPT). It can also import user font files in TTF, TTC, and OTF formats.

### Can I customize the reading experience in ShuBook 2M?

Yes, ShuBook 2M offers extensive customization for fluid-layout formats. You can adjust font family, size, alignment, margins, indentation, spacing, and apply color themes. It also includes a night mode and brightness control.

### How does ShuBook 2M help organize my book library?

ShuBook 2M allows you to manage thousands of books in your library. You can group them by titles, authors, tags, and clusters, with hierarchical organization options for authors and tags. Reading progress is also displayed.

### Where can I get books to read with ShuBook 2M?

ShuBook 2M provides access to millions of free ebooks from multiple sources, including HTML websites and OPDS catalogs. You can also import books via AirDrop, Dropbox, Safari, Mail, and iTunes File Sharing.

### Does ShuBook 2M sync my reading progress?

Yes, ShuBook 2M allows you to sync your book reading progress via AirDrop and email. It also offers an option to auto-reopen the last book read at the page you left off.

### What devices are compatible with ShuBook 2M?

ShuBook 2M is compatible with all supported iPhone and iPad models, providing native screen resolution for an optimal viewing experience.

### How often is ShuBook 2M updated?

The latest version of ShuBook 2M is 3.3.2, which was last updated on March 11, 2020. While the app has not been updated recently, it remains a stable and functional reader.

### What is the price of ShuBook 2M?

ShuBook 2M is a paid application priced at $5.99. There are no in-app purchases or subscriptions required.

## Version history (last 5 releases)

### 3.3.2 — 2020-03-11

- Fixed some minor bugs

### 3.3.1 — 2020-01-06

- Made night mode reading more comfortable
- Fixed minor bugs

### 3.3 — 2019-10-08

- Addressed some iOS 13 compatibility issues

### 3.2.3 — 2019-09-05

- Improved paragraph extraction heuristics for some poorly-encoded EPUB books

### 3.2.2 — 2019-09-02

- Added a new Setting switch "Strict decoding of standard EPUB"

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## More apps by Ambibma Limited

- [ShuBook 2P 書僕](https://appshunter.io/ios/app/shubook-2p/id950072013)
- [ShuBook X 書僕](https://appshunter.io/ios/app/shubook-x/id1497625038)

All apps by Ambibma Limited: https://appshunter.io/developer/385897282

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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 2026-07-04.*