# UnitSwap vs MHT Viewer

The clearest difference is in-app purchases: UnitSwap at none against MHT Viewer's 4. UnitSwap also leads on rating (5.0 vs 4.8) and iOS requirement (12.4 vs 17.0). MHT Viewer's advantage is ratings volume (16 vs 2). On price, ads and device support there is nothing between them.

Both are free to download. MHT Viewer sells 4 in-app purchases, starting at $3.99 per 7 days. UnitSwap asks for nothing beyond the download.

UnitSwap holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: MHT Viewer has 16 ratings behind it against 2, so its average is the more settled of the two.

## The numbers

| Metric | UnitSwap | MHT Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/unitswap/id6450141706/reviews)** | [4.8 (16 ratings)](https://appshunter.io/ios/app/mht-viewer-mhtml-reader/id6761450357/reviews) |
| Number of ratings | 2 | **16** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 11 days |
| Monetization | **Free** | Freemium |
| Size | 7 MB | 16 MB |
| Requires iOS | **12.4** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Prashanth Brahmandam](https://appshunter.io/developer/1532661953) | [Beijing Danbao Intelligent Technology Co., Ltd](https://appshunter.io/developer/1833168926) |

## What reviewers say

### UnitSwap

[App page](https://appshunter.io/ios/app/unitswap/id6450141706)

Easily convert between various units like length, weight, and temperature with this simple tool. It offers a user-friendly interface for hassle-free calculations and an ad-free experience.

**Highlights:** Unit conversion, Length conversion, Weight conversion, Temperature conversion, User-friendly interface, Ad-free experience

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

**In-app purchases:** none


### MHT Viewer

[App page](https://appshunter.io/ios/app/mht-viewer-mhtml-reader/id6761450357)

Easily open and read MHT and MHTML web archive files offline on your iPhone and iPad. Convert these files to HTML format while preserving layout and images. Access saved web pages quickly and securely on your device.

**Highlights:** Open MHT and MHTML files, Accurate web page rendering, Offline access, Convert MHT to HTML, Share or export content, Private and secure file handling

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MHT Viewer Pro Weekly | $3.99 | per 7 days |
| MHT Viewer Pro Monthly | $5.99 | per month |
| MHT Viewer Pro Yearly | $9.99 | per year |
| MHT Viewer Premium | $19.99 | one-time |


## Frequently asked questions

### Is UnitSwap free?

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

### Is MHT Viewer free?

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

### Which has better reviews, UnitSwap or MHT Viewer?

UnitSwap is rated higher. UnitSwap averages 5.0 out of 5 from 2 ratings, while MHT Viewer averages 4.8 from 16 ratings.

### Do UnitSwap or MHT Viewer have ads?

Neither UnitSwap nor MHT Viewer shows ads.

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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.*