# Unit Converter HD. vs Unit Converter 單位換算

The clearest difference is in-app purchases: Unit Converter 單位換算 at none against Unit Converter HD.'s 1. Unit Converter 單位換算 also leads on ads (none vs shown) and rating (5.0 vs 4.7). Unit Converter HD.'s advantage is ratings volume (644 vs 1). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Unit Converter HD. sells 1 one-off in-app purchase. Unit Converter 單位換算 asks for nothing beyond the download.

Unit Converter 單位換算 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 644 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Unit Converter HD. | Unit Converter 單位換算 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (644 ratings)](https://appshunter.io/ios/app/unit-converter-hd/id481973377/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/unit-converter/id1607242875/reviews)** |
| Number of ratings | **644** | 1 |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 86 MB | 22 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [First Bird Design & Technology Limited](https://appshunter.io/developer/1080920043) |

## 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 單位換算

[App page](https://appshunter.io/ios/app/unit-converter/id1607242875)

This utility app offers comprehensive unit conversions for various measurements including weight, length, temperature, and computer memory. It also provides multi-country currency conversion with auto-updated exchange rates and supports Asian-specific units. The app features real-time conversion, remembers your last used units, and supports multiple languages.

**Highlights:** Extensive unit support (weight, length, volume, etc.), Multi-country currency conversion, Real-time conversion updates, Automatic saving of last used units, Support for Asian-specific units, Multi-language interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter HD. free?

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

### Is Unit Converter 單位換算 free?

Unit Converter 單位換算 is free to download, with no in-app purchases.

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

Unit Converter 單位換算 is rated higher. Unit Converter HD. averages 4.7 out of 5 from 644 ratings, while Unit Converter 單位換算 averages 5.0 from 1 ratings.

### Do Unit Converter HD. or Unit Converter 單位換算 have ads?

Unit Converter HD. shows ads; Unit Converter 單位換算 does not.

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

Unit Converter HD. ships an update every 2 months, and Unit Converter 單位換算 every 2 months. Most recently, Unit Converter HD. was updated on October 16, 2026 and Unit Converter 單位換算 on October 2, 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.*