# Unit Converter vs HTML Viewer & CSS Editor

The clearest difference is review sentiment: Unit Converter at 100% against HTML Viewer & CSS Editor's 50%. Unit Converter also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Unit Converter sells 2 one-off in-app purchases and HTML Viewer & CSS Editor sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Unit Converter ships an update every 10 days, HTML Viewer & CSS Editor every 6 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Unit Converter | HTML Viewer & CSS Editor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (5 ratings)](https://appshunter.io/ios/app/html-viewer-and-css-editor/id6766464372/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 25 MB | 15 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [磊 刘](https://appshunter.io/developer/1892400556) | [Ebenezer Oteng](https://appshunter.io/developer/1840002550) |

## What reviewers say

### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-free-and-easy/id6762030231)

This free unit converter offers over 40 categories and 200+ currencies with live exchange rates. It features batch conversion, offline functionality, and a user-friendly interface with dark mode. All features are permanently free with no sign-up or data collection.

**Highlights:** 40+ conversion categories, 200+ currencies with live rates, Batch conversion, Offline functionality, Dark mode, CSV export

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unit Conversion Standard Version | $2.99 | one-time |
| Unit Conversion Pro Edition | $5.99 | one-time |


### HTML Viewer & CSS Editor

[App page](https://appshunter.io/ios/app/html-viewer-and-css-editor/id6766464372)

Visually customize web pages in real time without coding. Experiment with layouts, change text, adjust styles, and swap images instantly. Save and export your design prototypes for sharing or reference.

**Highlights:** Edit text instantly, Customize colors and styles, Replace images, Live visual editing, Save and export designs, Simple and intuitive interface

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| editra monthly pro | $7.99 | per month |
| Yearly Subscriptions | $19.99 | per year |
| Lifetime access | $14.99 | one-time |


## Frequently asked questions

### Is Unit Converter free?

Unit Converter is free to download, with in-app purchases available.

### Is HTML Viewer & CSS Editor free?

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

### Do Unit Converter or HTML Viewer & CSS Editor have ads?

HTML Viewer & CSS Editor shows ads; Unit Converter does not.

### Which is updated more often, Unit Converter or HTML Viewer & CSS Editor?

Unit Converter ships an update every 10 days, and HTML Viewer & CSS Editor every 6 days. Most recently, Unit Converter was updated on October 31, 2026 and HTML Viewer & CSS Editor 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.*