ChmPlus Pro: CHM/EPUB Reader

By: 兰桂吴

Read CHM/EPUB/MHT documents

Features & Capabilities

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:

save the image to photo album
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/

User Growth & Download Statistics

App

By:

兰桂吴

Rating:

3.30

(43)

Version:

5.2.1 Last updated: 2023-10-15

Version code:

860675501

Creation date:

2011-06-09

Compatible devices:

Size:

9.51MB

Price:

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-06

Compare stats and ranking:

Ranking

# 235,864 ▼ 571

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

兰桂吴

Apple Apps Store

https://apps.apple.com/cn/app/chmplus-pro-chm-epub-reader/id441521818?l=en-GB

Website:

https://langui.net/

User Reviews

Reviews praise CHMPlus Pro for a robust CHM/EPUB reader with easy file transfer and strong developer support, often naming it among the best iOS CHM readers. However, recurring issues—unreliable highlighting, crashes, and slow performance—dominate feedback. Some users also cite UI/navigation quirks and feature gaps. Updates have addressed some problems, but reliability and speed remain the main drawbacks before broader usability is assured.

Pros

Strong CHM/EPUB feature set including document-wide search, library organization, annotations, and support for multiple file types.
Easy file upload and Wi‑Fi transfer of books between devices.
Active and responsive developer support with frequent updates.
Widely regarded as one of the best CHM readers on iOS.

Cons

Highlighting is unreliable or nonfunctional across many documents (appears broken, disappears, or only works inconsistently).
Crashes and arbitrary instability reported by multiple users.
Slow performance and lag, especially with large books or during text selection/highlighting.

Recent reviews

Recent update broke search feature when searching for numbers, ie. 1, 2, 3, 1021, 2459, etc. Searching for letters or words works correctly. 20220913: Developer Resolved Issue, Back to 5 Stars!