ChmPlus Pro - CHM Reader


Description of App: 

CHM+ Reader (ChmPlus) is a feature-rich CHM (Microsoft Compiled HTML Help) document / ebook reader for iPad, iPhone and iPod touch. CHM+ Reader is currently the best CHM reader available for iOS.CHM+ Reader now supports highlight / annotation, bookmark and search (find on page & document-wide search).

The only CHM reader for iOS that supports document-wide search!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
  • Swipe to turn page
  • 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
  • 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
  • PDF, HTML, RTF, .mht, Safari webarchives and text files
  • .zip, .rar, .7z,.gz, .tar 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. CHM+ Reader is currently the only CHM reader that supports .mht format.SUPPORT

Apple Watch Support: 

Not Known



Free or Paid: 


Device(s) App Was Tested On: 

iPod Touch

Accessibility Comments: 

The app is fully accessible using Voiceover and the good thing is that all controls are labelled clearly.

VoiceOver Performance: 

VoiceOver reads all page elements.

Button Labeling: 

All buttons are clearly labeled.


The app is fully accessible with VoiceOver and is easy to navigate and use.

Other Comments: 

If you are an avid reader and often had hard times reading chm files on your beloved iOS device, then this one should be the answer. even though the program is paid, the good thing is that there is a free version, of course its limitations is in the number of files you can keep at any given moment. If my memory saves me well, it should be 7 files. The chm format is the native Windows format for most manuals and other ebooks, mostly programming texts. The beauty of this format is in its navigation: you can easily search or skip between toc items flawlessly. At last, for us who use Voiceover, Chm+ reader is here. try it out.