ChmPlus Pro: CHM/EPUB Reader
by 兰桂 吴
- Books
- Paid
- Zombie
- Small & simple · 93
- Rating
- 1.0
- 1 ratings · India storefront
- Last update
- Oct 15, 2023
- Version 5.2.1
- Size
- 10 MB
- Category
- Books
- Tracked since
- Oct 9, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
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/
What’s new
Release notes for the latest version, as written by the developer.
- Fix the CHM/EPUB viewer search button issue (macOS Sonoma)
Rank history
Daily position in the Bahamas charts. #1 is at the top.
- Best rank
- #37
- Current rank
- #37
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
93/100
Small & simple
- Developer size70% · 25
Developer: 2 apps on the charts
- Audience size100% · 20
Ratings: 1
- App size100% · 10
Size: 10 MB
- Price model100% · 15
Price model: paid
- Demand proof100% · 30
Best rank #5, 65 countries
An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2
How the score worksVersion history
- 5.2.1LatestReleased Oct 15, 2023