Supports CHM files in different languages Open CHM files instantly (even with huge files) Search (find on page & document-wide search) ***** ChmPlus Reader is now also available for Mac! (search for 'chmplus' on the Mac App Store) *****ĬhmPlus Reader now supports passcode lock! ChmPlus Reader is currently the best CHM reader available for iOS. ChmPlus Reader (CHM+ Reader) is a feature-rich CHM (Microsoft Compiled HTML Help) document / ebook reader for iPad, iPhone and iPod touch.