# Koodo Reader — Ebook Reading Made Easy

> Cross-platform e-book reader with extensive format support and cloud integration. (iPhone/iPad app by 亮 郭.)

- Source: https://appshunter.io/ios/app/koodo-reader/id6744887779 (this page in markdown: same URL + `.md`)
- Developer: [亮 郭](https://appshunter.io/developer/1803973300)
- Category: Books
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 15.5 · 42 MB
- Languages: American English
- Released: 2025-07-04
- Data updated: 2026-08-28
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/koodo-reader/id6744887779/reviews.md

## What is Koodo Reader?

Koodo Reader is a powerful e-book reader designed for managing and reading local e-books. It supports a wide range of popular formats, including EPUB, PDF, MOBI, AZW3, TXT, Comics and more. It integrates seamlessly with personal NAS and cloud storage for a smooth cross-platform experience. 

With a fully customizable interface, you can adjust fonts, switch between multiple themes, enable night mode, and enjoy optimized layouts for any screen size.

Key Features:

Broad Format Support: EPUB, PDF, MOBI, AZW3, AZW, TXT, FB2, CBR, CBZ, CBT, CB7, MD, DOCX, HTML, XML, XHTML, MHTML, HTM

Cloud Integration: Works with OneDrive, Google Drive, Dropbox, pCloud, Baidu Netdisk, 115 Netdisk,  Aliyun Drive, Yandex Disk and Box

Network Protocol Compatibility: WebDAV, Self-hosted Docker, SMB, FTP, SFTP and S3-Compatible Object Storage

Sync Across Devices: Automatically keeps your library, reading progress, bookshelves, notes, and highlights up to date

AI-Powered Tools: Built-in dictionary, translation, and smart summarization

## Key features

- Broad e-book format support
- Cloud and NAS integration
- Cross-device library sync
- Customizable reading interface
- AI-powered dictionary and translation
- Night mode and multiple themes

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Koodo Reader Pro (1 Year) | $5.99 | one-time |
| 5 million Character Quota | $4.99 | one-time |


## Recent user reviews (10 of 36)

All indexed reviews: https://appshunter.io/ios/app/koodo-reader/id6744887779/reviews.md

### 5/5 — Love it but…

*2026-08-16, version 2.4.3*

Just wish the updated the iPad app so that it functions better natively. The menu during reading is tough.

### 1/5 — iOS 端 OndDrive 完全不同步

*2026-08-03*

在电脑上完成了 Onedrive 的同步授权，建立好了同步文件夹，并且把数据同步到文件夹中，iOS 设置同步之后，点击同步完全没有任何反应！竟然还显示同步成功，不知道是怎么判定同步成功的！

### 5/5 — Great!

*2026-07-08*

A brilliant reading app. It’s constantly evolving and improving! I’ve switched to it from Kindle.

### 5/5 — open get comfy read

*2026-07-05, version 2.3.6*

simply wise and intuitive - 
as near to a real book as one nan imagine -
feedback questions answered within hours - 
no gimmicks, no bugs, no promotions

### 5/5 — 竖版版面

*2026-06-10, version 2.3.5*

竖版排版下，字体很容易层叠，也就是堆叠在一起。

### 5/5 — 好用

*2026-05-20*

没有乱七八糟的广告，可以多端同步回归到阅读的本质，

### 4/5 — 怎么说呢，美而不实

*2026-05-18*

ui、动画、功能及配色都挺不错，就是性能不行，属于打包app，远不及原生代码流畅，各种延迟卡顿掉帧滞后等问题，ai属于直接绑定的不是自定义接口，年费制可以接受，毕竟现在api挺贵的，体验下来真的是弃之可惜的感觉。希望开发大大重构一下

### 4/5 — 请问作者会出家庭共享吗？

*2026-05-18, version 2.3.3*

类似goodnotes，一个人买，家里人都能用，这是目前唯一犹豫购买的原因

### 4/5 — 别的都还行，翻页优化做的很不好，很影响阅读体验

*2026-05-18*

翻页平滑模式做的不太好，容易连翻两页，而且动画很僵直，翻页模式选无得话，滑动就没办法翻页，导致左手单手操作很不方便

### 2/5 — 漏内容

*2026-05-15*

刚导入进去的时候没有问题，但是一旦退出之前导入的图书就缺了很多内容，试了很多次都是这样。电脑版没有问题，就手机这样。

## Frequently asked questions about Koodo Reader

### What e-book formats does Koodo Reader support?

Koodo Reader supports a vast array of formats including EPUB, PDF, MOBI, AZW3, TXT, FB2, CBR, CBZ, and DOCX, among many others. This extensive compatibility ensures you can read almost any e-book file you have.

### How does Koodo Reader handle cloud storage integration?

Koodo Reader integrates with popular cloud services like Google Drive, Dropbox, and OneDrive, as well as network protocols like WebDAV and SMB. This allows for seamless access to your e-books stored remotely and keeps your library synchronized.

### Can I sync my reading progress across multiple devices with Koodo Reader?

Yes, Koodo Reader offers automatic synchronization of your library, reading progress, bookshelves, notes, and highlights across all your devices. This ensures a consistent reading experience regardless of the device you use.

### Does Koodo Reader offer any AI-powered features?

Koodo Reader includes AI-powered tools such as a built-in dictionary, translation capabilities, and smart summarization. These features enhance comprehension and make it easier to understand complex texts.

### What customization options are available in Koodo Reader?

The app features a fully customizable interface, allowing you to adjust fonts, switch between multiple themes, enable night mode, and optimize layouts for different screen sizes. This personalization ensures a comfortable reading experience.

### Is Koodo Reader available on all devices?

Koodo Reader is currently supported on iPhone, iPad, and iPod devices. While it offers cross-platform syncing, the application itself is designed for Apple's iOS ecosystem.

### How often is Koodo Reader updated?

The latest version, 2.2.9, was released on March 8, 2026. This indicates a recent update, suggesting the app is actively maintained and improved by its developers.

### What is the age rating for Koodo Reader?

Koodo Reader has an age rating of 17+. This is likely due to the nature of the content users might read, rather than the app's functionality itself.

## Version history (last 5 releases)

### 2.4.3 — 2026-08-03

Fix an issue with custom translation and dictionary

### 2.4.1 — 2026-07-17

NEW FEATURES
· The sync progress bar is automatically hidden while reading
· Support for selecting text across pages
· Strikethrough and wavy underline styles have been added to highlighting options
· The image viewer now supports continuous browsing of all images in a book
· AI Chat supports saving and exporting chat history
· Support for editing book content using replacement and deletion rules
· Added an option to preserve the original PDF background
· Support for customizing the target language for full-text translation (AI Encyclopedia)
· Support for code highlighting
· Support for cropping PDF margin

OPTIMIZATIONS
· Optimized the accuracy of online book cover and metadata matching

FIXES
· Fixed known issues and improved stability. Welcome to report any problems you encounter during use.

### 2.3.6 — 2026-06-18

NEW FEATURES
· Support for searching and matching book covers and metadata online
· Supports syncing notes and highlights with Siyuan Notes; Siyuan Notes must be running with network serving enabled
· Added automatic sync feature after importing books
· Added scheduled sync feature with customizable sync intervals; go to Settings > Sync Options
· Support for syncing reading progress with KOReader. Go to Settings > Sync Options
· Support for syncing new vocabulary to Eudic and Anki. Go to Settings > Sync Options
· Support for swiping the screen to turn pages after disabling page-turn animations
· Free users can now use OPDS and reading statistics features
· iOS now supports update notifications
· Page-turning animations are now supported when volume buttons are enabled for page turning
· Send to Kindle now displays uploading progress

FIXES
· Fixed an issue where the narration did not sync with the current position while using TTS
· Fixed an issue where the TTS feature malfunctioned in certain situations
· Fixed an issue where page-turning animations were not disabled in E-ink mode
· Fixed an error when sending files to Kindle that were too large
· Fixed an issue where changes to TTS settings did not take effect immediately
· Fixed an issue where importing large books via sharing or as a default opening method caused an error
· Fixed an issue where books could not be imported or opened on older versions of iOS (caused by WebView compatibility issues)
· TTS stopped unexpectedly after locking the screen

### 2.3.5 — 2026-05-22

NEW FEATURES
· Urgent fix for incomplete display of TXT files
· Supports batch replacement of book covers. Please tap the “More” button at the top and select “Multi select”

FIXES
· Fixed known issues and improved stability. Welcome to report any problems you encounter during use.

### 2.3.3 — 2026-05-14

NEW FEATURES
· Added reading statistics feature, supporting heatmaps, bar charts, line charts, and more
· Added word definitions feature; once enabled, definitions will appear directly next to the words in the text, supporting English, Japanese, and Chinese
· Added support for customizing text menu options
· Support for “Ask AI” and “Read from Here” after selecting text; you must manually enable this in the text menu
· Koodo Sync data is now encrypted by default before storage
· OPDS now supports connection testing
· Support for custom TXT parsers, with individual settings for each book
· Support for sorting books by file size and reading progress
· Support for setting book styles individually for each book instead of using the global style
· PDF-to-text conversion now supports individual settings for each book
· Added support for editing the book's floating button
· Added support for pinning books; long-press the book and select “Pin to Top”
· Supports selecting highlighted text
· TTS feature now supports AI multi-role speech, allowing separate voice settings for male, female, and child voices
· Full-text translation feature added, including side-by-side bilingual translation and full-text translation
· Support for custom AI models for AI translation, AI dictionary, and AI chat. Go to Settings > AI Services
· Support for automatic synchronization of notes and highlights to Notion, Readwise, and Yuque. Go to Settings > Sync Options
· Support for the OPDS protocol
· Support for viewing daily remaining AI voice quotas. Go to Settings > Account
· Support for selecting highlighted text
· AI Encyclopedia now generates definitions based on the meaning of the term in the original text
· Support for custom actions after selecting text, including immediate lookup, translation, highlighting, and note-taking; go to Settings > Reading Options to enable
· Added support for editing publisher and description fields in book metadata
· Added sorting support for books on the bookshelf
· Sliding animations are now enabled by default
· The iOS version now supports using locally installed dictionaries such as Merriam-Webster, Google Translate, Yandex Translate for word lookup and translation. Please go to Settings > Third-Party Services
· After navigating to a table of contents, notes, highlights, or bookmarks, you can now tap the back button in the bottom-right corner to return to your previous location

OPTIMIZATIONS
· Optimized speed for the official AI OCR
· Optimized performance for some unparsed TXT files
· Optimized table styles within text
· Optimized S3 protocol compatibility; added an option to enforce path-style URLs
· Optimized performance for TXT books without parsed tables of contents
· Optimized footnote display for certain MOBI and AZW3 format books

FIXES
· Fixed known issues and improved stability. Welcome to report any problems you encounter during use.

## Apps similar to Koodo Reader

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [PureLibro: eBook Reader](https://appshunter.io/ios/app/purelibro-ebook-reader/id1546612448) | 4.6 (362) | Free | Books |
| [Anx Reader](https://appshunter.io/ios/app/anx-reader/id6743196413) | 2.5 (8) | Free | Books |
| [Readest - eBook Reader](https://appshunter.io/ios/app/readest-ebook-reader/id6738622779) | 4.5 (167) | Free | Books |
| [Reeden Reader - EPUB & eBook](https://appshunter.io/ios/app/reeden-reader-epub-and-ebook/id6727013910) | 4.7 (44) | Free | Books |
| [Readify: AI Natural Read Aloud](https://appshunter.io/ios/app/readify-ai-natural-read-aloud/id6743287753) | 4.6 (108) | Free | Books |
| [Readingo](https://appshunter.io/ios/app/readingo/id6502330235) | 4.8 (107) | Free | Books |

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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 2026-08-28.*