# HTML5教程 vs CHM+

The clearest difference is update cadence: CHM+ at every 6 weeks against HTML5教程's every 4 months. CHM+ also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. HTML5教程 sells 1 one-off in-app purchase and CHM+ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

HTML5教程 ships an update every 4 months, CHM+ every 6 weeks. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | HTML5教程 | CHM+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/chm-plus-chm-document-reader/id6745147168/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 71.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 16 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [宏斌 樊](https://appshunter.io/developer/1452129040) | [俊锋 仝](https://appshunter.io/developer/1209824000) |

## What reviewers say

### HTML5教程

[App page](https://appshunter.io/ios/app/html5/id1438635589)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 去除广告插件 | $3.99 | one-time |


### CHM+

[App page](https://appshunter.io/ios/app/chm-plus-chm-document-reader/id6745147168)

This app provides a streamlined way to read CHM documents on iOS devices. It offers quick import from local storage and iCloud, fast opening of large files, and efficient chapter navigation. Enjoy a smooth reading experience with support for multiple encodings.

**Highlights:** Quick document import (local storage, iCloud), Fast opening of large CHM files, Table of contents chapter switching, Multi-screen collaboration on iPad, Support for multiple encoding types, Smooth reading experience

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CHM Pro | $4.99 | one-time |


## Frequently asked questions

### Is HTML5教程 free?

HTML5教程 is free to download, with in-app purchases available.

### Is CHM+ free?

CHM+ is free to download, with in-app purchases available.

### Do HTML5教程 or CHM+ have ads?

Both HTML5教程 and CHM+ show ads.

### Which is updated more often, HTML5教程 or CHM+?

HTML5教程 ships an update every 4 months, and CHM+ every 6 weeks. Most recently, HTML5教程 was updated on November 2, 2026 and CHM+ on November 5, 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.*