# ChmPlus Pro vs CHM+

The clearest difference is price: CHM+ at Free against ChmPlus Pro's $6.99. CHM+ also leads on review sentiment (83% vs 54%) and rating (3.0 vs 2.7). ChmPlus Pro's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

CHM+ is free to download; ChmPlus Pro costs $6.99 up front. CHM+ sells 1 one-off in-app purchase. ChmPlus Pro asks for nothing beyond the download.

CHM+ holds the better App Store score, 3.0 against 2.7. Both are backed by a comparable volume of ratings — 9 and 2 respectively. Written reviews point the same way: 54% of ChmPlus Pro's written reviews are positive against 83% of CHM+'s.

ChmPlus Pro ships an update every 9 days, CHM+ every 6 weeks. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | ChmPlus Pro | CHM+ |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | [2.7 (9 ratings)](https://appshunter.io/ios/app/chmplus-pro-chmepub-reader/id441521818/reviews) | **[3.0 (2 ratings)](https://appshunter.io/ios/app/chm-plus-chm-document-reader/id6745147168/reviews)** |
| Number of ratings | **9** | 2 |
| Positive reviews | 54.5% of reviews | **83.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 6 weeks |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 10 MB | 16 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [兰桂 吴](https://appshunter.io/developer/433671404) | [俊锋 仝](https://appshunter.io/developer/1209824000) |

## What reviewers say

### ChmPlus Pro

[App page](https://appshunter.io/ios/app/chmplus-pro-chmepub-reader/id441521818)

This app allows you to read and manage various document formats, including CHM and EPUB ebooks. It offers features like highlighting, bookmarking, searching, and file transfer. Secure your documents with a passcode lock and organize your files with ease.

**Highlights:** CHM/EPUB document reading, Highlight, bookmark, and annotate, Document-wide search, Wi-Fi and iTunes file transfer, Passcode lock for files, Support for multiple file types, Create and edit text documents

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Generally good for CHM files
- 🚀 Fast opening of files
- 🔍 Powerful search function
- 📂 Good file organization
- ✨ Clean interface

**What reviewers complain about**

- 🐛 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

**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

**Requested features**

- Adjustable font size
- PDF left-right page turning
- EPUB file support
- Expand/collapse table of contents
- Adapt to full-screen displays


### CHM+

[App page](https://appshunter.io/ios/app/chm-plus-chm-document-reader/id6745147168)

This app provides a streamlined way to read CHM documents on iOS devices. It offers quick import from local storage and iCloud, fast opening of large files, and efficient chapter navigation. Enjoy a smooth reading experience with support for multiple encodings.

**Highlights:** Quick document import (local storage, iCloud), Fast opening of large CHM files, Table of contents chapter switching, Multi-screen collaboration on iPad, Support for multiple encoding types, Smooth reading experience

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CHM Pro | $4.99 | one-time |


## Frequently asked questions

### Is ChmPlus Pro free?

ChmPlus Pro costs $6.99, with no in-app purchases.

### Is CHM+ free?

CHM+ is free to download, with in-app purchases available.

### Which has better reviews, ChmPlus Pro or CHM+?

CHM+ is rated higher. ChmPlus Pro averages 2.7 out of 5 from 9 ratings, while CHM+ averages 3.0 from 2 ratings.

### Do ChmPlus Pro or CHM+ have ads?

CHM+ shows ads; ChmPlus Pro does not.

### Which is updated more often, ChmPlus Pro or CHM+?

ChmPlus Pro ships an update every 9 days, and CHM+ every 6 weeks. Most recently, ChmPlus Pro was updated on September 25, 2026 and CHM+ on September 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*