ChmPlus Reader (CHM+ Reader) is a feature-rich CHM (Microsoft Compiled HTML Help) document / ebook reader for iPad, iPhone and iPod touch. ChmPlus Reader is currently the best CHM reader available for iOS.

***** ChmPlus Reader is now also available for Mac! (search for "chmplus" on the Mac App Store) *****

ChmPlus Reader now supports passcode lock!

CHM/ePub Document Support:
- Highlight / annotation / bookmark
- 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
- Look up words with Google / Wiktionary
- Supports auto rotation and orientation lock
- Support CHM document that contains .mht pages
- 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)
- Built-in web browser for viewing images and external links

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 document from other applications
- Import document from Email
- Edit existing text documents
- Send multiple Email attachments
- Create .zip archives
- Save image to Photos

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

Note: support for .mht format is experimental, the App might not be able to open large .mht files.

Q: How to turn off instant search (live search) to speed up searching?
A: You can turn it off in the settings.


What's New

Version 5.0.1

- Fix the Wi-Fi button crash issue for iOS 6 and prior

Ratings and Reviews

2 out of 5

5 Ratings

5 Ratings

Navigation is bad


The iPad version does not compare with CHMate Premium.

Here they have no integration to get files from Cloud drives.

Here the navigation is flat and you have to click multiple times to search the document due to complex menus. It should just be a pull down like spotlight. This is on iOS, right? It should feel like an iOS app.

I would like to see a real hierarchy that stays open and follows my reading as I turn the pages.

And speaking of turning the pages, it should actually go as fast as my finger. CHMate premium does but here, the lag is so long that I try to turn the page again before the page is shown and then it waits and skips forward again. Really, really bad.

Locks up


Just bought it and it locks up

The Best app in App Store: Excellent!


I don't know what to think of this great app: the fact that it now opens epub books makes it even better with the day. The developer seems to be committed to taking user input and keeping regular updates so for that reason, anyone looking for a great app that does effective file management on iPhone or iPad, must look no further. The answer lies here: do all your file management tasks in this app and opens any type of document in use today. The fact that it op[ens chm files makes it the only app that is usable as a portable ebook reader. No longer need to be worried about books from Windows PC or from Mac not being compatible with your iOS device. Keep this up, I wish there was a 10 star -- I would have gladly endorsed it with all my heart. I Expect to see even Mobi files in future versions, I now just download my Gutenberg books straight on my iPad without hustles. Or even consider adding a built-in browser for navigating to some web pages. Otherwise , excellent, excellent, excellent!


Coral Wu
8.9 MB
Requires iOS 5.1.1 or later. Compatible with iPhone, iPad, and iPod touch.
English, Simplified Chinese, Traditional Chinese
Age Rating
Rated 4+
© 2011-2015


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like