# HTML Dual Viewer vs HTML Keep

The clearest difference is review sentiment: HTML Keep at 100% against HTML Dual Viewer's 0%. HTML Keep also leads on rating (5.0 vs 2.7) and update cadence (every 4 days vs every 3 weeks). HTML Dual Viewer's advantage is in-app purchases (none vs 4) and iOS requirement (8.4 vs 17.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. HTML Keep sells 4 in-app purchases, starting at $5.99 per month. HTML Dual Viewer asks for nothing beyond the download.

HTML Keep holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 0% of HTML Dual Viewer's written reviews are positive against 100% of HTML Keep's.

HTML Dual Viewer ships an update every 3 weeks, HTML Keep every 4 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | HTML Dual Viewer | HTML Keep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (3 ratings)](https://appshunter.io/ios/app/html-dual-viewer/id1027385656/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/html-keep-mobile-html-viewer/id6767142789/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | **Free** | Freemium |
| Size | 16 MB | 31 MB |
| Requires iOS | **8.4** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Makoto Nishimoto](https://appshunter.io/developer/896702438) | [光 杨](https://appshunter.io/developer/1893576790) |

## 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 Keep

[App page](https://appshunter.io/ios/app/html-keep-mobile-html-viewer/id6767142789)

Easily preview local HTML, Markdown, and ZIP files on your mobile device. Quickly open and view documents or web packages received or saved on your phone without needing complex tools or an internet connection.

**Highlights:** Local HTML file preview, Native Markdown rendering, ZIP web package import, No account or login required, Offline viewing capabilities, Simple and fast interface

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HTML Pocket Pro Monthly | $5.99 | per month |
| HTML Pocket Pro Yearly | $29.99 | per year |
| HTML Pocket Premium Lifetime Promo | $28.49 | one-time |
| HTML Pocket Premium Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is HTML Dual Viewer free?

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

### Is HTML Keep free?

HTML Keep is free to download, with in-app purchases available.

### Which has better reviews, HTML Dual Viewer or HTML Keep?

HTML Keep is rated higher. HTML Dual Viewer averages 2.7 out of 5 from 3 ratings, while HTML Keep averages 5.0 from 2 ratings.

### Do HTML Dual Viewer or HTML Keep have ads?

Neither HTML Dual Viewer nor HTML Keep shows ads.

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

HTML Dual Viewer ships an update every 3 weeks, and HTML Keep every 4 days. Most recently, HTML Dual Viewer was updated on November 1, 2026 and HTML Keep 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.*