# HTML5 Viewer Pro vs Pocket Assembler

The clearest difference is rating: Pocket Assembler at 5.0 against HTML5 Viewer Pro's 4.0. Pocket Assembler also leads on ads (none vs shown) and update cadence (every 9 days vs every 6 weeks). HTML5 Viewer Pro's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. Pocket Assembler sells 2 in-app purchases, starting at $7.99 per year. HTML5 Viewer Pro asks for nothing beyond the download.

Pocket Assembler holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 9 respectively. Written reviews point the same way: 75% of HTML5 Viewer Pro's written reviews are positive against 92% of Pocket Assembler's.

HTML5 Viewer Pro ships an update every 6 weeks, Pocket Assembler every 9 days. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | HTML5 Viewer Pro | Pocket Assembler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/html5-viewer-pro-editor-code/id1613694333/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/pocket-assembler/id6737518265/reviews)** |
| Number of ratings | 2 | **9** |
| Positive reviews | 75.0% of reviews | **91.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | **Ad-supported** | Freemium |
| Size | 21 MB | 5 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DREAMER NETWORK CO., LTD](https://appshunter.io/developer/1613694335) | [Hudson Heavy Industries](https://appshunter.io/developer/1727337256) |

## What reviewers say

### HTML5 Viewer Pro

[App page](https://appshunter.io/ios/app/html5-viewer-pro-editor-code/id1613694333)

This app is a mobile text editor designed for web development. It offers features like syntax highlighting, auto-completion, and code execution to help developers write and test HTML, CSS, and JavaScript on their devices.

**Highlights:** Syntax highlighting, Auto indention, Code assist, Auto completion, Compilation and execution, Local HTML editing

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

**In-app purchases:** none


### Pocket Assembler

[App page](https://appshunter.io/ios/app/pocket-assembler/id6737518265)

Learn assembly programming on your mobile device with a streamlined interface. It offers free coding challenges and documentation, with an optional Pro upgrade for advanced features and more complex projects.

**Highlights:** Learn assembly programming, Free coding mode, 28 coding challenges, Comprehensive documentation, Customizable editor themes, Advanced instructions (Pro), Custom execution speed (Pro)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Annual | $7.99 | per year |
| Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is HTML5 Viewer Pro free?

HTML5 Viewer Pro is free to download, with no in-app purchases.

### Is Pocket Assembler free?

Pocket Assembler is free to download, with in-app purchases available.

### Which has better reviews, HTML5 Viewer Pro or Pocket Assembler?

Pocket Assembler is rated higher. HTML5 Viewer Pro averages 4.0 out of 5 from 2 ratings, while Pocket Assembler averages 5.0 from 9 ratings.

### Do HTML5 Viewer Pro or Pocket Assembler have ads?

HTML5 Viewer Pro shows ads; Pocket Assembler does not.

### Which is updated more often, HTML5 Viewer Pro or Pocket Assembler?

HTML5 Viewer Pro ships an update every 6 weeks, and Pocket Assembler every 9 days. Most recently, HTML5 Viewer Pro was updated on September 18, 2026 and Pocket Assembler on September 23, 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.*