# Unit Converter HD. vs Converter Pro

The clearest difference is rating: Unit Converter HD. at 4.7 against Converter Pro's 4.4. Unit Converter HD. also leads on review sentiment (94% vs 72%) and ratings volume (645 vs 45). On price, update cadence, 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 Converter Pro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Unit Converter HD. holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Unit Converter HD. has 645 ratings behind it against 45, 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 72% of Converter Pro's.

Unit Converter HD. ships an update every 2 months, Converter Pro every 3 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Unit Converter HD. | Converter Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (645 ratings)](https://appshunter.io/ios/app/unit-converter-hd/id481973377/reviews)** | [4.4 (45 ratings)](https://appshunter.io/ios/app/converter-pro-unit-converter/id663948608/reviews) |
| Number of ratings | **645** | 45 |
| Positive reviews | **93.8% of reviews** | 72.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 86 MB | 43 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [Panoramic Software Inc.](https://appshunter.io/developer/329216366) |

## 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


### Converter Pro

[App page](https://appshunter.io/ios/app/converter-pro-unit-converter/id663948608)

This app provides a comprehensive tool for converting units and currencies. It offers over 3000 unit conversions across 19 categories and daily updated rates for over 150 world currencies. Customize the look with different skins and access past calculations.

**Highlights:** 3000+ unit conversions, 150+ currency rates, 19 conversion categories, Daily currency rate updates, Customizable skins and color schemes, Tape View for recent equations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $3.99 | one-time |


## Frequently asked questions

### Is Unit Converter HD. free?

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

### Is Converter Pro free?

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

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

Unit Converter HD. is rated higher. Unit Converter HD. averages 4.7 out of 5 from 645 ratings, while Converter Pro averages 4.4 from 45 ratings.

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

Both Unit Converter HD. and Converter Pro show ads.

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

Unit Converter HD. ships an update every 2 months, and Converter Pro every 3 months. Most recently, Unit Converter HD. was updated on October 29, 2026 and Converter Pro on October 25, 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.*