# NetCheck Pro vs HTML Web Preview

The clearest difference is in-app purchases: HTML Web Preview at none against NetCheck Pro's 1. HTML Web Preview also leads on update cadence (weekly vs every 2 weeks). NetCheck Pro's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. NetCheck Pro sells 1 one-off in-app purchase. HTML Web Preview asks for nothing beyond the download.

NetCheck Pro ships an update every 2 weeks, HTML Web Preview weekly. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | NetCheck Pro | HTML Web Preview |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 36 MB | 8 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Seiya.k](https://appshunter.io/developer/383021944) | [Do Yun Kim](https://appshunter.io/developer/6811644863) |

## What reviewers say

### NetCheck Pro

[App page](https://appshunter.io/ios/app/netcheck-pro-6-in-1-tap/id6753649752)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lifetime | $2.99 | one-time |


### HTML Web Preview

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

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

**In-app purchases:** none


## Frequently asked questions

### Is NetCheck Pro free?

NetCheck Pro is free to download, with in-app purchases available.

### Is HTML Web Preview free?

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

### Do NetCheck Pro or HTML Web Preview have ads?

Both NetCheck Pro and HTML Web Preview show ads.

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

NetCheck Pro ships an update every 2 weeks, and HTML Web Preview weekly. Most recently, NetCheck Pro was updated on November 12, 2026 and HTML Web Preview on November 13, 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.*