CHMate vs ChmPlus Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CHMate
This app offers a robust reading experience for EPUB and CHM eBooks. Organize your library, add bookmarks and notes, and customize your reading environment. Share passages and easily search within your books.
- Organize eBooks into collections
- Add bookmarks and notes
- Customizable fonts and line height
- Fast scrolling and pagination
- Highlight favorite passages
- Built-in search functionality
- Share quotes with friends
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Default ebook formatting does not always suit the way you read. CHMate turns your personal files into a calm, comfortable reading corner. A customizable wooden bookshelf with an ambient lamp and personal decor. Download free. Unlock multiple books with a single one-time purchase. A BOOKSHELF OF YOUR OWN • Wooden shelves and ambient lamp: Display your personal collection with warm bookshelf lighting. • Shelf decor: Arrange animated ornaments, plants, paintings, and shelf-edge figures. • Personal memories: Decorate with photos, Live Photos, or silent looping videos (MP4/MOV). • Custom layout: Freely move, resize, and favorite your decor items. TAILORED TYPOGRAPHY • Page colors: Choose from six page colors independently of your typography theme, with light, dark, or automatic appearance. • Precise reading controls: Adjust font size, line height, page margins, and fonts for body, headings, and code. • Custom font import: Read with built-in fonts or import your own font files. • Horizontal and vertical reading: Switch text orientation where supported for Chinese and Japanese text. • iCloud theme sync: Save your custom typography themes and sync them across your devices. TOOLS & LOCAL IMPORT • Supported formats: Read your own EPUB and CHM files with structured table of contents navigation. • Local Wi-Fi transfer: Send files directly from your computer browser over your local network. • Reading tools: Search full text across chapters, add highlights, and review notes in one place. HONEST PRICING • Free download with complete reading features for your current book. • Unlock multiple books with a single one-time in-app purchase. • No subscriptions and no ads.
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/
Screenshots
Verdict
The clearest difference is price: CHMate at Free against ChmPlus Pro's $6.99. CHMate also leads on rating (3.9 vs 2.7). ChmPlus Pro's advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 26.0). On review sentiment, ratings volume, update cadence and ads 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
CHMate is free to download; ChmPlus Pro costs $6.99 up front. CHMate sells 1 one-off in-app purchase. ChmPlus Pro asks for nothing beyond the download.
CHMate holds the better App Store score, 3.9 against 2.7. Both are backed by a comparable volume of ratings — 20 and 9 respectively. Written reviews split almost evenly too, at 55% and 54% positive.
CHMate ships an update every 2 weeks, ChmPlus Pro every 9 days. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.
| Parameter | CHMate | ChmPlus Pro |
|---|---|---|
| Price | Free — better | $6.99 |
| Rating | 3.9 (20 ratings) — better | 2.7 (9 ratings) |
| Positive reviews | 55.3% of reviews — better | 54.5% of reviews |
| Number of ratings | 20 — better | 9 |
| Update frequency | Every 2 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 51 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | 贤安 陈 | 兰桂 吴 |
Customer experience
CHMate
ChmPlus Pro
User reviews
CHMate
From 20 App Store ratingsWhat we love
- 👍 Excellent UI/UX design and interface
- 📖 Best CHM file reader available
- ⚡ Fast and smooth performance
- 🎨 Customizable text formatting and fonts
- 🔍 Powerful search functionality
Room to improve
- 🐛 Frequent crashes and stability issues
- ⚠️ iCloud sync deletes files irreversibly
- 💰 Expensive pricing for functionality
- 🔄 Highlighting and annotations don't persist
- 📱 Compatibility issues with iOS updates
ChmPlus Pro
From 9 App Store ratingsWhat we love
- 👍 Generally good for CHM files
- 🚀 Fast opening of files
- 🔍 Powerful search function
- 📂 Good file organization
- ✨ Clean interface
Room to improve
- 🐛 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
Bugs and requests
CHMate
Reported bugs
13 issues- App crashes when searching CHM files
- Crashes when using tap-hold for bookmarking
- Highlighting functionality broken after iOS updates
- Notes and bookmarks not saving properly
- Highlights disappear or move between chapters
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- App crashes on startup or when opening files
- Table of contents index expansion broken
- Custom fonts blocked after iOS 14.5 update
- Files not accessible via iCloud or Dropbox
- Missing icons after updates
- Images display as half-dark or missing
- Text formatting changes not visible without page reload
- First line spacing issues
Requested features
12 requests- Dark mode and additional color themes (Sepia)
- Book cover display instead of text-only library view
- PDF support
- Text-to-speech functionality
- Better pagination options
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- iPad Pro resolution support
- iOS multi-window support
- Better bookmark functionality
- Separate highlighting and annotation tools
- Support for Cyrillic and Arabic text encoding
- Collection/folder organization for multiple files
- Zip file support for documentation sets
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
Show 28 moreShow fewer
- 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
In-app purchases
CHMate
- CHMate+$9.99
ChmPlus Pro
No in-app purchases







