# Combat Heat Stress Toolbox vs HTML Viewer

The clearest difference is in-app purchases: Combat Heat Stress Toolbox at none against HTML Viewer's 2. Combat Heat Stress Toolbox also leads on iOS requirement (12.0 vs 15.0). HTML Viewer's advantage is device support. On price there is nothing between them.

Both are free to download. HTML Viewer sells 2 in-app purchases, starting at $4.99 per 7 days. Combat Heat Stress Toolbox asks for nothing beyond the download.

## The numbers

| Metric | Combat Heat Stress Toolbox | HTML Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Monthly |
| Size | 29 MB | 26 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LABMET SOLUCOES TECNOLOGICAS PARA AGRICULTURA LTDA](https://appshunter.io/developer/1744477226) | [明航 李](https://appshunter.io/developer/1823569127) |

## What reviewers say

### Combat Heat Stress Toolbox

[App page](https://appshunter.io/ios/app/combat-heat-stress-toolbox/id6502144666)

**In-app purchases:** none


### HTML Viewer

[App page](https://appshunter.io/ios/app/html-viewer-htmly/id6780105308)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access | $4.99 | per 7 days |
| Unlimited access | $24.99 | per year |


## Frequently asked questions

### Is Combat Heat Stress Toolbox free?

Combat Heat Stress Toolbox is free to download, with no in-app purchases.

### Is HTML Viewer free?

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

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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.*