# Unit Converter HD. vs Unit Converter

The clearest difference is update cadence: Unit Converter at weekly against Unit Converter HD.'s every 2 months. Unit Converter also leads on rating (5.0 vs 4.7). Unit Converter HD.'s advantage is ratings volume (646 vs 42) and device support (3 vs 1). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Unit Converter HD. sells 1 one-off in-app purchase and Unit Converter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Unit Converter holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Unit Converter HD. has 646 ratings behind it against 42, so its average is the more settled of the two. Written reviews point the same way: 94% of Unit Converter HD.'s written reviews are positive against 100% of Unit Converter's.

Unit Converter HD. ships an update every 2 months, Unit Converter weekly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Unit Converter HD. | Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (646 ratings)](https://appshunter.io/ios/app/unit-converter-hd/id481973377/reviews) | **[5.0 (42 ratings)](https://appshunter.io/ios/app/unit-converter-omniconvert/id1602930764/reviews)** |
| Number of ratings | **646** | 42 |
| Positive reviews | 93.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 86 MB | 35 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [Jonathan Chen](https://appshunter.io/developer/1602930766) |

## What reviewers say

### Unit Converter HD.

[App page](https://appshunter.io/ios/app/unit-converter-hd/id481973377)

Easily convert over 700 units across 30 categories with this powerful tool. It offers a user-friendly interface, dark mode support, and a backspace key for quick corrections. Save time on all your measurement conversion needs.

**Highlights:** 700+ Units of Measure, 30 Conversion Categories, Easy-to-Use Interface, Dark Mode Support, Backspace Key

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads Pack | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Handy and convenient
- 💡 Comprehensive set of conversions
- 🚀 Very useful app
- 👍 Intuitive design

**What reviewers complain about**

- 🐛 Occasional crashes or freezing issues
- 💡 Could be more intuitive for some users
- 🔒 Requires horizontal orientation

**Reported bugs**

- Freezing or crashing on some devices
- Display issues with certain units

**Requested features**

- Add support for US weights (tons, lbs., oz.)
- Implement portrait mode support
- Provide more customization options


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-omniconvert/id1602930764)

This app provides a comprehensive suite of tools for unit and currency conversions, along with various calculators and scientific constants. It offers real-time exchange rates, works offline, and supports a wide range of categories. Enjoy a user-friendly experience with features like dark mode and no conversion limits.

**Highlights:** Unit conversions, Currency conversions, Real-time exchange rates, Offline functionality, Variety of calculators, Scientific constants, Dark mode

**Features:** macOS Compatibility

**In-app purchases (1)**

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


## Frequently asked questions

### Is Unit Converter HD. free?

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

### Is Unit Converter free?

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

### Which has better reviews, Unit Converter HD. or Unit Converter?

Unit Converter is rated higher. Unit Converter HD. averages 4.7 out of 5 from 646 ratings, while Unit Converter averages 5.0 from 42 ratings.

### Do Unit Converter HD. or Unit Converter have ads?

Both Unit Converter HD. and Unit Converter show ads.

### Which is updated more often, Unit Converter HD. or Unit Converter?

Unit Converter HD. ships an update every 2 months, and Unit Converter weekly. Most recently, Unit Converter HD. was updated on November 6, 2026 and Unit Converter on November 3, 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.*