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 provides a robust reading experience for EPUB and CHM eBooks. Organize your library, add bookmarks and notes, and easily search for text. Customize your reading with adjustable fonts and brightness, and share passages with friends.
- Organize files into personal collections
- Add bookmarks and notes
- Customizable fonts and line height
- Built-in search feature
- Share quotes with friends
- Adjustable screen brightness
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Most e-readers are bloated with monthly subscription traps, intrusive ads, and clumsy formatting. CHMate brings the quiet focus and tactile elegance of a real book back to your screen. Native EPUB and CHM reader with rich typography customization, instant search, and paper themes. Trusted by readers for over a decade, now rebuilt natively for modern iOS. Pay once, own forever. Full unlimited access with no subscriptions. CHMate+ is a local EPUB and CHM reader for iPhone and iPad. Import the books and documents you already own, arrange them into a library you enjoy, and read each one in the way that suits it best. CRAFTED FOR FOCUSED READING • Paper Texture & Themes: Curated paper backgrounds, customizable fonts, line spacing, margins, and dark mode • Distraction-Free: Clean interface designed to put nothing between you and the text • Tactile Gestures: Smooth chapter transitions and fluid page-turning that respect your reading rhythm DUAL FORMAT POWER: EPUB & CHM • EPUB: Perfect for literature, novels, and reflowable publications • CHM & MHT: Read technical documentation, programming references, and compiled help manuals with structured tables of contents POWERFUL, PRIVATE UTILITIES • Instant Search: Lightning-fast full-text search across chapters • Highlights & Notes: Capture the quotes that move you and review annotations easily • iCloud Theme Sync: Seamlessly sync your typography themes across your devices via CloudKit • Local Wi-Fi Transfer: Drop books directly from your computer browser to your device over Wi-Fi without cables HONEST, ONE-TIME PURCHASE • Full access and unlimited bookshelf included from the start • No in-app purchases. No recurring subscriptions. • No ads. No tracking.
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 rating: CHMate+ at 3.8 against ChmPlus Pro's 2.7. CHMate+ also leads on chart position (#148 vs unranked). ChmPlus Pro's advantage is update cadence (every 9 days vs every 2 months) and price ($6.99 vs $9.99). On review sentiment, ratings volume, ads and in-app purchases 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+ costs $9.99 and ChmPlus Pro $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
CHMate+ holds the better App Store score, 3.8 against 2.7. Both are backed by a comparable volume of ratings — 8 and 9 respectively. Written reviews point the same way: 61% of CHMate+'s written reviews are positive against 54% of ChmPlus Pro's.
CHMate+ ships an update every 2 months, ChmPlus Pro every 9 days. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.
| Parameter | CHMate+ | ChmPlus Pro |
|---|---|---|
| Price | $9.99 | $6.99 — better |
| Rating | 3.8 (8 ratings) — better | 2.7 (9 ratings) |
| Positive reviews | 60.9% of reviews — better | 54.5% of reviews |
| Number of ratings | 8 | 9 — better |
| Update frequency | Every 2 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | #148 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | 贤安 陈 | 兰桂 吴 |
Customer experience
CHMate+
ChmPlus Pro
User reviews
CHMate+
From 8 App Store ratingsWhat we love
- 🚀 Great CHM reader
- 👍 Smooth navigation
- 👍 Customizable text formatting
- 👍 Useful annotation features
- 👍 Reliable and stable
Room to improve
- 🐛 Crashes and freezes after updates
- 🐛 Compatibility issues with some CHM files
- 🔍 Limited search functionality
- 📂 Lack of file management options
- 💰 Expensive for a CHM reader
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
4 issues- Crashes when searching within documents
- Table of contents not syncing with current position
- Highlighting and annotations not working reliably
- Issues with opening and loading certain CHM files
Requested features
5 requests- Full-text search across documents
- Folder organization for files
- Improved image handling and zooming
- Sync with cloud storage services
- Ability to rename files
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
In-app purchases
CHMate+
No in-app purchases
ChmPlus Pro
No in-app purchases
