ChmPlus Pro vs CHM+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChmPlus Pro
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.
- 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
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ChmPlus Reader (CHM+) is a feature-rich CHM (Microsoft Compiled HTML Help) document/ebook reader for iPhone/iPad. ChmPlus Reader now supports passcode lock! CHM/EPUB Document Support: • Highlight / bookmark / annotation • Search (find on page & document-wide search) • Open CHM files instantly (even with huge files) • Supports CHM files in different languages • Supports pinch to zoom • Navigate through table of contents • Supports full screen mode • Supports auto rotation and orientation lock • Long press on an image to: 1) save the image to photo album 2) copy the image to clipboard (and paste it into your email) • Night mode (white text on black background) File Management: • Transfer files via Wi-Fi (FTP & HTTP) / iTunes File Sharing • Create/copy/move/rename/delete files and folders • Passcode lock • Support opening document with other applications • Import documents from other applications • Create/edit text documents • Send multiple Email attachments • Create .zip archives • Save image to Photos • Browse and manage remote files (FTP/FTPS, SFTP and WebDAV) Supported File Types: • .chm (Microsoft Compiled HTML Help) • .epub (electronic publication) • MS Office - .doc, .ppt., .xls, .docx, .xlsx, .pptx • iWork '08/'09 (Pages, Numbers, Keynote) • PDF, HTML, RTF, .mht, Safari webarchives and text files • .zip, .rar, .7z, .bz2, .gz, .tar and various other archive file types • High resolution images • Audio and video ==SUPPORT== - https://langui.net/chmplus/
CHM+
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.
- 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
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CHM+ focuses on enhancing the reading experience of CHM documents on the iOS platform. Main features: - Quick document import: Supports importing CHM documents from local storage and iCloud. - Fast opening of extremely large files. - Quick chapter switching: Supports switching by table of contents and quick switching in the order of the table of contents. - Multi-screen collaboration: Available for iPad. - Support for multiple encoding types. - A smooth reading experience.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | ChmPlus Pro | CHM+ |
|---|---|---|
| Price | $6.99 | Free — better |
| Rating | 2.7 (9 ratings) | 3.0 (2 ratings) — better |
| Positive reviews | 54.5% of reviews | 83.3% of reviews — better |
| Number of ratings | 9 — better | 2 |
| Update frequency | Every 9 days — better | Every 6 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 10 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | 兰桂 吴 | 俊锋 仝 |
Customer experience
ChmPlus Pro
CHM+
Bugs and requests
ChmPlus Pro
Reported bugs
33 issues- 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
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- 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
Requested features
33 requests- Adjustable font size
- PDF left-right page turning
- EPUB file support
- Expand/collapse table of contents
- Adapt to full-screen displays
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- 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
CHM+
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ChmPlus Pro
No in-app purchases
CHM+
- CHM Pro$4.99
