# HTML Opener vs HTML Web Preview

HTML Opener and HTML Web Preview are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

HTML Opener ships an update every 3 days, HTML Web Preview every 2 days. The most recent releases landed on October 2, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | HTML Opener | HTML Web Preview |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 days | **Every 2 days** |
| Size | 11 MB | 8 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GASHIMA LAB](https://appshunter.io/developer/1857125368) | [Do Yun Kim](https://appshunter.io/developer/6811644863) |

## What reviewers say

### HTML Opener

[App page](https://appshunter.io/ios/app/html-opener/id6808631721)

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

**In-app purchases:** none


### HTML Web Preview

[App page](https://appshunter.io/ios/app/html-web-preview-js-css-json/id6811644861)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HTML Opener free?

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

### Is HTML Web Preview free?

HTML Web Preview is free to download, with no in-app purchases.

### Do HTML Opener or HTML Web Preview have ads?

Both HTML Opener and HTML Web Preview show ads.

### Which is updated more often, HTML Opener or HTML Web Preview?

HTML Opener ships an update every 3 days, and HTML Web Preview every 2 days. Most recently, HTML Opener was updated on October 2, 2026 and HTML Web Preview on September 28, 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.*