ChmPlus Pro vs Epub Reader
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
Read full descriptionHide full description
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/
Epub Reader
This app offers a seamless reading experience for various ebook formats including EPUB, PDF, and CHM. It supports multiple compression formats and provides features like table of contents, note-taking, and bookmarking. Customize your reading with adjustable font sizes.
- Supports EPUB, PDF, CHM, RTF formats
- Opens compressed files (ZIP, RAR, 7Zip)
- Table of Contents navigation
- Note-taking functionality
- Bookmark management
- Customizable font size
Read full descriptionHide full description
Epub Reader: Ultimate Ebook & Comic Viewer Experience seamless reading with a powerful, all-in-one document viewer designed for iOS. Now fully compatible with Kindle and Amazon ebook formats! All-in-One Format Support • Kindle Formats: MOBI, AZW, AZW3, AZW4, PRC • Ebooks & Docs: EPUB, PDF, CHM, RTF • Comics & Archives: CBZ, CBR, ZIP, RAR, 7Z, GZIP, TAR Key Features: • Smart Navigation: Effortlessly browse and skip chapters with the interactive Table of Contents. • Personalized Reading: Highlight text, take inline notes, and save your favorite pages with bookmarks. • Fully Customizable: Adjust font sizes and layouts to read comfortably, day or night. • Easy File Transfer: Instantly import books via Wi-Fi (desktop browser) or iTunes File Sharing. #Permanent professional version: * Make a one-time purchase and resume purchases anytime, anywhere. #Annual professional version: * Annual auto-renewable subscription, automatic renewal upon expiration. * Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's iTunes Account Settings after purchase. Privacy Policy: https://junjie-5cfc2.web.app/epubreader/privacypolicy.html Terms of Use: https://junjie-5cfc2.web.app/epubreader/terms.html Contact us: marryapps@163.com
Screenshots
Verdict
The clearest difference is price: Epub Reader at Free against ChmPlus Pro's $6.99. Epub Reader also leads on rating (4.5 vs 2.7) and ratings volume (11K vs 9). ChmPlus Pro's advantage is in-app purchases (none vs 4) and ads (none vs shown). On review sentiment, update cadence and 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
Epub Reader is free to download; ChmPlus Pro costs $6.99 up front. Epub Reader sells 4 in-app purchases, starting at $3.99 per year. ChmPlus Pro asks for nothing beyond the download.
Epub Reader holds the better App Store score, 4.5 against 2.7. That said, the two scores are not equally well evidenced: Epub Reader has 11K ratings behind it against 9, so its average is the more settled of the two. Written reviews split almost evenly too, at 54% and 55% positive.
ChmPlus Pro ships an update every 9 days, Epub Reader every 11 days. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.
| Parameter | ChmPlus Pro | Epub Reader |
|---|---|---|
| Price | $6.99 | Free — better |
| Rating | 2.7 (9 ratings) | 4.5 (11K ratings) — better |
| Positive reviews | 54.5% of reviews | 55.3% of reviews — better |
| Number of ratings | 9 | 11K — better |
| Update frequency | Every 9 days — better | Every 11 days |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | — | #136 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 10 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | 兰桂 吴 | 俐 马 |
Customer experience
ChmPlus Pro
Epub Reader
User reviews
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
Epub Reader
From 11K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Fast and responsive
- 💡 Convenient file transfer via WiFi
- 🤩 Great for casual reading
Room to improve
- 🐛 Loses bookmarks and reading progress
- 🔍 Lacks search functionality
- 🌗 No dark mode option
- 📏 Limited customization options
- 💤 Doesn't remember last read position
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
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
Show 28 moreShow fewer
- 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
Epub Reader
Reported bugs
3 issues- Crashes when opening certain files
- Distorts images in some ebooks
- Fails to open ePub files consistently
Requested features
5 requests- Add dark mode
- Improve bookmark and progress tracking
- Implement search feature
- Increase customization options
- Allow variable screen timeout
In-app purchases
ChmPlus Pro
No in-app purchases
Epub Reader
- Annual professional version$3.991 Year
- Remove Ads$0.99
- Passcode Lock$0.99
- Pro Version$5.99









