# ChmPlus Pro: CHM/EPUB Reader — user reviews

> 123 indexed App Store user reviews of ChmPlus Pro by 兰桂 吴, rated 2.70/5 from 9 ratings.

- Source: https://appshunter.io/ios/app/chmplus-pro-chmepub-reader/id441521818/reviews
- App overview in markdown: https://appshunter.io/ios/app/chmplus-pro-chmepub-reader/id441521818.md
- Rating breakdown: 5★ 3 · 4★ 0 · 3★ 1 · 2★ 1 · 1★ 4

## What do users think of ChmPlus Pro?

Overall sentiment: mixed

**Pros**

- 👍 Generally good for CHM files
- 🚀 Fast opening of files
- 🔍 Powerful search function
- 📂 Good file organization
- ✨ Clean interface
- 🔄 Frequent updates and developer responsiveness
- 🗄️ Supports various file types
- 📶 Easy file transfer (AirDrop, Wi-Fi)
- 💯 Worth the price for some users
- 📖 Good for reading medical textbooks

**Cons**

- 🐛 Frequent crashes and freezes
- 🐛 Highlighting issues (not working, disappearing)
- 🐛 Displaying Chinese characters as garbled text (亂碼)
- 🐛 Slow copy/paste and search response
- 🐛 Some CHM files not fully opening
- 🐛 Editing text feature removed
- 🐛 UI design is poor/outdated
- 🐛 Navigation issues in PDF/EPUB
- 🐛 Laggy page turning
- 🐛 Inconsistent performance with free version
- 🐛 Expensive for the features offered
- 🐛 Lack of some basic features in paid version

**Commonly reported bugs**

- Chinese characters displayed as garbled text (亂碼)
- Search feature broken for numbers (recent)
- Copying is slow
- App crashes when searching
- Editing text feature removed after update
- Some CHM files cannot be fully opened
- Highlighting not working or disappearing
- PDF navigation issues
- Page turning is laggy
- App locks up or freezes
- Black screen or screen jumping issues
- Subdirectories cannot be opened
- MHT file errors
- Frequent crashes with large PDFs or highlighting
- Table of contents not permanently displayed
- Cannot display secondary windows
- Slow highlighting/selection
- Swipe to turn page not working
- Text smudging after zooming on iOS 7
- Highlighting not saving
- App crashes when defining words
- App jumps to the beginning of text
- Live search on page is too slow
- Highlight option not working properly
- Notes disappear after reopening
- Chapters change spontaneously
- Cannot delete folders
- App freezes when using highlighting
- PDF is read-only
- Pixelated icons on new iPads
- No function for CHM-Files (no content shown)
- Search function not working for CHM files
- Unhighlight words after search

**Most requested features**

- Adjustable font size
- PDF left-right page turning
- EPUB file support
- Expand/collapse table of contents
- Adapt to full-screen displays
- Highlighting for PDF and EPUB
- Freehand annotation/drawing
- Split screen for notes
- Add folders via iTunes library
- Dark mode/night viewing
- Private lock for files
- Support for .rar and .zip files
- Reading .cbr files
- Better iOS 7 adaptation
- Continuous scrolling
- Font selection and line spacing adjustments
- Copy annotations to PC
- Export feature
- Open .rar and .zip
- Read .cbr
- Develop for iOS 7
- Block orientation defective
- Font selection
- No refund option
- Move files within folders
- Better UI/shelf-like appearance
- Add .mobi file support
- Built-in browser
- Unhighlight words after search
- Add private lock
- Search all over a document
- Add folder support on iTunes library
- Inverse background mode for night time viewing

## Newest reviews (14 of 123)

### 4/5 — 希望可以调整字体大小

*2024-04-17*

如题，有这个功能就更好了

### 3/5 — 用心点吧，买了专业版，居然有的chm不能全打开

*2022-11-26*

有点失望啊，又的功能还不如免费版的

### 4/5 — 为什么突然全部CHM文档都变成乱码了？

*2022-11-11*

如题

### 3/5 — 为什么不能编辑文本了？

*2022-11-10*

以前打开txt是可以直接编辑文本的，更新后这个功能没了！？

**Developer response:** 您好，
请在文件列表中长按相应文件，从弹出菜单中选择“编辑”。
谢谢！

### 4/5 — 望有PDF【左右翻页】功能

*2022-09-09*

能否加入PDF文件【左右翻页】的功能，还有对EPUB文件的支持。

**Developer response:** 您好，CHM+ 现已更新，如使用中有任何问题，请与我们联系。谢谢！

### 4/5 — 目录不能展开和折叠

*2022-04-23*

目录不能展开和折叠，如果加入这个功能就好了，chm格式有时候目录多了，不能折叠的话真的很难受

### 4/5 — 作者大大，快更新啊

*2020-11-15*

快点更新啊，该适配新屏幕了。现在都是全面屏了，以前的那种排版很不适应了。这是收费版啊哥哥。这样直接扔在那里真的好吗？对不起这么多付费用户啊。

**Developer response:** 您好，
ChmPlus 现已更新，请更新至最新版。
如使用中有任何问题，请与我们联系。
谢谢！

### 4/5 — 限免的时候收的

*2017-04-01*

好久没有更新了

### 1/5 — 这45元等于喂狗了！

*2016-06-11*

同一个文件，在免费版中显示正常！由于有广告，就买了正式版！日了狗了！乱码！真泥M无语了！

### 1/5 — Navigation within document (PDF) not working

*2016-05-19*

I cannot navigate back and forward within a document. The app also has some more bugs that are unfixed yet.

### 1/5 — Navigation is bad

*2015-10-08*

The iPad version does not compare with CHMate Premium. 

Here they have no integration to get files from Cloud drives.

Here the navigation is flat and you have to click multiple times to search the document due to complex menus. It should just be a pull down like spotlight. This is on iOS, right?  It should feel like an iOS app. 

I would like to see a real hierarchy that stays open and follows my reading as I turn the pages.

And speaking of turning the pages, it should actually go as fast as my finger. CHMate premium does but here, the lag is so long that I try to turn the page again before the page is shown and then it waits and skips forward again. Really, really bad.

### 2/5 — 用完软件感想

*2015-10-05*

软件虽然可以阅读打开chm文件，但是没有实现自动适合屏幕大小，和阅读翻页模式，感觉钱花的很冤，没想到花45块钱就这种水平......望尽快改进，

### 2/5 — mht file error.

*2015-06-30, version 5.0.1*

i donknow why.everytime open mht file happen it.

### 1/5 — This is a cheater app.

*2015-05-25*

This is a cheat  that even if going for a paid PAID version this reader do not support highlighting texts, though they claim that free version also supports highlighting text .
This is a cheat....they have earned enough that's why they don't care a bit, and why not to cheat when there is no one to halt them.

## Most critical reviews (10 lowest-rated)

### 1/5 — 忽然看不了中文了

*2023-01-22*

今天偶然打开了一个陈年旧档，居然中文都显示成了乱码，前几年没这毛病啊

### 1/5 — 更新完了反而出了很多乱码

*2022-09-28*

如题

**Developer response:** 您好，请更新至最新版后再试试。谢谢！

### 1/5 — 为什么复制时反应这么慢？

*2022-09-22*

一搜索就闪退

**Developer response:** 您好，请更新至最新版后再试试。谢谢！

### 1/5 — 申请退款

*2021-01-26*

货不对板、极差体验

### 1/5 — Unable to highlight

*2019-01-16*

Unable to highlight .please provide a fix

### 1/5 — 好垃圾

*2018-09-09*

这个软件怎么那么垃圾 白花了45元 苹果难道不能退货吗？

### 1/5 — Locks up

*2017-11-14*

Just bought it and it locks up

### 1/5 — 和免费版的一样黑屏 跳屏没法用

*2017-10-18*

因为免费版的总是自动黑屏、跳屏 软件自动关闭，没法阅读到60页。每次手动翻到50多页，又是自动跳屏到软件关闭，所以升级到专业版，没想到专业版一样不到60页就跳屏，而且功能还没有免费版的多。上当了，就当花钱买教训。软件真垃圾，根本没法用，摆脱不要再来骗人升级了。

### 1/5 — 子目录打不开，各种乱码

*2017-05-02*

我会向苹果申请退款

### 1/5 — 界面设计问题

*2016-08-01*

界面设计真的非常差，乡镇企业家或毫无美学直觉的理科男的作品，价格如此之高，真的不值。郁闷！

## Most praised reviews (10 highest-rated)

### 5/5 — 好用

*2023-10-15*

非常好用

### 5/5 — Recent Update Broke Search - Revised

*2022-09-13, version 5.1.2*

Recent update broke search feature when searching for numbers, ie. 1, 2, 3, 1021, 2459, etc. Searching for letters or words works correctly.

20220913: Developer Resolved Issue, Back to 5 Stars!

### 5/5 — Works for me.

*2020-08-31*

Easy to upload files.

### 5/5 — Totally brilliant app!

*2020-01-03*

I purchased this app many years ago for my iPad and use it daily to access Windows help files uploaded from my PC. I’ve just recently loaded this app onto my iPhone and have discovered that I can easily share CHM files between the different devices using AirDrop! A totally brilliant undocumented feature!

### 5/5 — 非常好

*2015-12-20*

继续努力。

### 5/5 — 好

*2015-10-04*

😊很少花时间评论应用，但这个真心好用

### 5/5 — Best one out there

*2013-06-16*

I haven't tried all the chm readers out there, but I've tried a lot of them. Yes, it needs a little work, but it's still the best app out there for chm's and some other files, too.  I love being able to transfer books over wifi, so I can transfer from virtually any computer no matter where I am.

### 5/5 — Great app

*2012-12-08, version 3.5*

Really great app that is updated and improved frequently - thank you!

### 5/5 — Remains The Best CHM reader on the iOS market

*2012-11-17*

This developer continues to improve and update this product, which is very appreciated.

The features this application contains are better than the competition. It supports document wide search, library organization, page display manipulation, document annotation, additional file types, etc.

If you have a chm file that you would like to read on your iOS device, purchase this app - nothing else compares (trust me, I own and have used the next best option CHMate)

### 5/5 — The best chm reader

*2012-11-17*

최고입니다 두말이 필요없어요. 저는 주로 의학서적 보는데 사용.

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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 2026-08-30.*