# Unit Converter Pro HD. vs 度量衡換算+

The clearest difference is price: 度量衡換算+ at Free against Unit Converter Pro HD.'s $0.99. 度量衡換算+ also leads on update cadence (every 2 weeks vs every 2 months) and rating (4.8 vs 4.6). Unit Converter Pro HD.'s advantage is ads (none vs shown). On review sentiment, ratings volume, in-app purchases and device support there is nothing between them.

度量衡換算+ is free to download; Unit Converter Pro HD. costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

度量衡換算+ holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 187 and 184 respectively. Written reviews point the same way: 87% of Unit Converter Pro HD.'s written reviews are positive against 91% of 度量衡換算+'s.

Unit Converter Pro HD. ships an update every 2 months, 度量衡換算+ every 2 weeks. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Unit Converter Pro HD. | 度量衡換算+ |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.6 (187 ratings)](https://appshunter.io/ios/app/unit-converter-pro-hd/id458584668/reviews) | **[4.8 (184 ratings)](https://appshunter.io/ios/app/plus/id573539093/reviews)** |
| Number of ratings | **187** | 184 |
| Positive reviews | 86.7% of reviews | **90.9% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 13 MB | 9 MB |
| Requires iOS | 13.0 | **12.3** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [109700](https://appshunter.io/developer/573519108) |

## What reviewers say

### Unit Converter Pro HD.

[App page](https://appshunter.io/ios/app/unit-converter-pro-hd/id458584668)

Easily convert between over 700 units of measure across 30 categories. This powerful tool acts as a universal assistant for all your conversion needs, saving you time and effort.

**Highlights:** 30 conversion categories, Over 700 units of measure, Backspace key for corrections, Intuitive and easy to use, Supports Dark Mode

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and efficient
- 👍 Easy to use
- 👍 Comprehensive unit conversions
- 👍 Accurate calculations
- 👍 Handy and useful

**What reviewers complain about**

- 🐛 Missing some important units
- 🔍 Difficult to navigate and find desired units
- 🔍 Cluttered interface with too many options
- 🔋 High battery consumption

**Reported bugs**

- Incorrect fuel consumption conversions
- Conversion values disappearing after update

**Requested features**

- Add support for more units (e.g. knots, stone, electron volts)
- Improve navigation and make it easier to find desired units
- Add portrait mode support
- Optimize interface for better usability


### 度量衡換算+

[App page](https://appshunter.io/ios/app/plus/id573539093)

Easily convert between metric, imperial, and traditional Chinese and Taiwanese units for weight, length, area, volume, and temperature. This app bridges the gap between different measurement systems used in Hong Kong, mainland China, and Taiwan.

**Highlights:** Metric to imperial conversion, Traditional Chinese/Taiwanese unit conversion, Weight, length, area, volume, temperature, Bilingual display (Chinese/English), Covers various regional systems

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter Pro HD. free?

Unit Converter Pro HD. costs $0.99, with no in-app purchases.

### Is 度量衡換算+ free?

度量衡換算+ is free to download, with no in-app purchases.

### Which has better reviews, Unit Converter Pro HD. or 度量衡換算+?

度量衡換算+ is rated higher. Unit Converter Pro HD. averages 4.6 out of 5 from 187 ratings, while 度量衡換算+ averages 4.8 from 184 ratings.

### Do Unit Converter Pro HD. or 度量衡換算+ have ads?

度量衡換算+ shows ads; Unit Converter Pro HD. does not.

### Which is updated more often, Unit Converter Pro HD. or 度量衡換算+?

Unit Converter Pro HD. ships an update every 2 months, and 度量衡換算+ every 2 weeks. Most recently, Unit Converter Pro HD. was updated on October 14, 2026 and 度量衡換算+ on October 13, 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.*