# HTML Dual Viewer vs HTML Sandbox 2

The clearest difference is review sentiment: HTML Sandbox 2 at 85% against HTML Dual Viewer's 0%. HTML Sandbox 2 also leads on rating (4.8 vs 2.7) and update cadence (every 5 days vs every 3 weeks). HTML Dual Viewer's advantage is iOS requirement (8.4 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HTML Sandbox 2 holds the better App Store score, 4.8 against 2.7. That said, the two scores are not equally well evidenced: HTML Sandbox 2 has 53 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of HTML Dual Viewer's written reviews are positive against 85% of HTML Sandbox 2's.

HTML Dual Viewer ships an update every 3 weeks, HTML Sandbox 2 every 5 days. The most recent releases landed on August 15, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | HTML Dual Viewer | HTML Sandbox 2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (3 ratings)](https://appshunter.io/ios/app/html-dual-viewer/id1027385656/reviews) | **[4.8 (53 ratings)](https://appshunter.io/ios/app/html-sandbox-2/id6443393029/reviews)** |
| Number of ratings | 3 | **53** |
| Positive reviews | 0.0% of reviews | **84.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free | Free |
| Size | 16 MB | 14 MB |
| Requires iOS | **8.4** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Makoto Nishimoto](https://appshunter.io/developer/896702438) | [Eric Roembach](https://appshunter.io/developer/1632108694) |

## What reviewers say

### HTML Dual Viewer

[App page](https://appshunter.io/ios/app/html-dual-viewer/id1027385656)

View HTML source code and browse web pages side-by-side. Features a syntax highlighter and Google search integration for easy code checking and site analysis. Allows real-time updates of HTML source as you navigate.

**Highlights:** Dual screen HTML viewer, Syntax highlighter, Google search integration, Real-time HTML source updates, Adjustable screen width, Full screen mode

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

**In-app purchases:** none


### HTML Sandbox 2

[App page](https://appshunter.io/ios/app/html-sandbox-2/id6443393029)

Create custom lock and home screens using HTML and various data sources like weather, battery, and calendar events. Download themes from a large community and receive support.

**Highlights:** Custom lock screen design, Custom home screen design, Integrate weather data, Integrate battery status, Integrate calendar events, Integrate RSS feeds, Community theme downloads

**In-app purchases:** none


## Frequently asked questions

### Is HTML Dual Viewer free?

HTML Dual Viewer is free to download, with no in-app purchases.

### Is HTML Sandbox 2 free?

HTML Sandbox 2 is free to download, with no in-app purchases.

### Which has better reviews, HTML Dual Viewer or HTML Sandbox 2?

HTML Sandbox 2 is rated higher. HTML Dual Viewer averages 2.7 out of 5 from 3 ratings, while HTML Sandbox 2 averages 4.8 from 53 ratings.

### Do HTML Dual Viewer or HTML Sandbox 2 have ads?

Neither HTML Dual Viewer nor HTML Sandbox 2 shows ads.

### Which is updated more often, HTML Dual Viewer or HTML Sandbox 2?

HTML Dual Viewer ships an update every 3 weeks, and HTML Sandbox 2 every 5 days. Most recently, HTML Dual Viewer was updated on August 15, 2026 and HTML Sandbox 2 on August 12, 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.*