ChmPlus Lite vs Standard Detective
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChmPlus Lite
This app allows you to read and manage various document formats, including CHM and EPUB, on your iPhone or iPad. It offers features like highlighting, bookmarking, searching, and file transfer. You can also manage files, create text documents, and save images.
- Read CHM and EPUB files
- Highlight, bookmark, and annotate
- Full-text search
- Wi-Fi and iTunes file transfer
- Passcode lock for files
- Support for multiple document and archive formats
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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/
Standard Detective
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This application displays the issuance and deliberation status of standards provided by IEC. In addition, when new standard published, withdrawn or change of deliberation status occurs, the summary will be notified. Targets are standards and related standards issued by the following IEC committees related to product safety, such as electrical safety and electromagnetic compatibility, environmental impact, explosive atmosphere, pressurized enclosure, etc. Nationwide standards related to this will also be posted sequentially. TC 31, TC 44, TC 61, TC 64, TC 66, TC 76, TC 77, TC 99, TC 101, TC 108, TC 111, TC 116. This application provides easy access to the information provided by the standard issuing organization, but it is not supported by each organization. Please refrain from inquiring to each group concerning this application.
Screenshots
Verdict
The clearest difference is ads: Standard Detective at none against ChmPlus Lite's shown. ChmPlus Lite's advantage is update cadence (monthly vs every 2 months) and iOS requirement (11.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ChmPlus Lite ships an update monthly, Standard Detective every 2 months. The most recent releases landed on August 30, 2026 and August 20, 2026 respectively.
| Parameter | ChmPlus Lite | Standard Detective |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (11 ratings) — better | — |
| Positive reviews | 49.3% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Monthly — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 13 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | 兰桂 吴 | Masahiko Takahashi |
In-app purchases
ChmPlus Lite
No in-app purchases
Standard Detective
No in-app purchases
Questions
Is ChmPlus Lite free?
Is Standard Detective free?
Do ChmPlus Lite or Standard Detective have ads?
Which is updated more often, ChmPlus Lite or Standard Detective?
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