# Unit Converter HD. vs Uniter

The clearest difference is ads: Uniter at none against Unit Converter HD.'s shown. Uniter also leads on update cadence (every 4 days vs every 2 months). Unit Converter HD.'s advantage is review sentiment (94% vs 67%) and ratings volume (645 vs 73). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Unit Converter HD. sells 1 one-off in-app purchase and Uniter sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Unit Converter HD. against 4.7 for Uniter. That said, the two scores are not equally well evidenced: Unit Converter HD. has 645 ratings behind it against 73, so its average is the more settled of the two. Written reviews are what separate them: 94% of Unit Converter HD.'s written reviews are positive against 67% of Uniter's.

Unit Converter HD. ships an update every 2 months, Uniter every 4 days. The most recent releases landed on September 19, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Unit Converter HD. | Uniter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (645 ratings)](https://appshunter.io/ios/app/unit-converter-hd/id481973377/reviews) | [4.7 (73 ratings)](https://appshunter.io/ios/app/uniter-smart-unit-conversion/id1589272507/reviews) |
| Number of ratings | **645** | 73 |
| Positive reviews | **93.8% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 86 MB | 10 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [Arkadiusz Holko](https://appshunter.io/developer/683846458) |

## 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


### Uniter

[App page](https://appshunter.io/ios/app/uniter-smart-unit-conversion/id1589272507)

Effortlessly convert units of measurement directly within text, websites, or even through your camera. This utility automatically detects and converts units to your preferred system, supporting a vast array of measurement types.

**Highlights:** Automatic unit conversion, Live side-by-side converter, File import for conversion, Camera text scanning, Safari extension, Extensive unit support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Uniter Pro (Monthly) | $3.99 | per month |
| Uniter Pro (Annual) | $14.99 | per year |
| Uniter Pro (Lifetime) | $39.99 | one-time |


## Frequently asked questions

### Is Unit Converter HD. free?

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

### Is Uniter free?

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

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

Unit Converter HD. and Uniter are both rated 4.7 out of 5 on the App Store, from 645 and 73 ratings respectively.

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

Unit Converter HD. shows ads; Uniter does not.

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

Unit Converter HD. ships an update every 2 months, and Uniter every 4 days. Most recently, Unit Converter HD. was updated on September 19, 2026 and Uniter on September 10, 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.*