# ChmPlus Lite vs Standard Detective

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.

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.

## The numbers

| Metric | ChmPlus Lite | Standard Detective |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (11 ratings)](https://appshunter.io/ios/app/chmplus-lite-chmepub-reader/id443454952/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 49.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 2 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [兰桂 吴](https://appshunter.io/developer/433671404) | [Masahiko Takahashi](https://appshunter.io/developer/1216975941) |

## What reviewers say

### ChmPlus Lite

[App page](https://appshunter.io/ios/app/chmplus-lite-chmepub-reader/id443454952)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Standard Detective

[App page](https://appshunter.io/ios/app/standard-detective/id1410152839)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ChmPlus Lite free?

ChmPlus Lite is free to download, with no in-app purchases.

### Is Standard Detective free?

Standard Detective is free to download, with no in-app purchases.

### Do ChmPlus Lite or Standard Detective have ads?

ChmPlus Lite shows ads; Standard Detective does not.

### Which is updated more often, ChmPlus Lite or Standard Detective?

ChmPlus Lite ships an update monthly, and Standard Detective every 2 months. Most recently, ChmPlus Lite was updated on August 30, 2026 and Standard Detective on August 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*