# Unit Converter HD. — 30 categories, 700+ units

> Universal unit converter with 700+ units in 30 categories. (iPhone/iPad app by 良峰 侯.)

- Source: https://appshunter.io/ios/app/unit-converter-hd/id481973377 (this page in markdown: same URL + `.md`)
- Developer: [良峰 侯](https://appshunter.io/developer/654444245)
- Category: Utilities, Travel
- Price: Free with in-app purchases
- Rating: 4.70/5 from 645 App Store ratings · 145 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 86 MB
- Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2011-11-29
- Data updated: 2026-08-28
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/unit-converter-hd/id481973377/reviews.md

## What is Unit Converter HD.?

The most powerful unit converter in the market.

Helps you make easy conversion between more than 700+ various units of measure in 30 categories. Discover a universal assistant for all of your unit conversion needs.

Features:
√ 30 Categories
√ 700+ Units of Measure
√ Backspace key
√ Extremely Easy-to-Use
√ Supports Dark Mode

Save Your Time. Quickly & Easily!

Universer Unit Converter Free HD URL scheme is "EWUnitConverterFree://"

## Key features

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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

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


## What do users think of Unit Converter HD.?

Overall sentiment: positive

**Pros**

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

**Cons**

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

**Commonly reported bugs**

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

**Most requested features**

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

## Recent user reviews (10 of 145)

All indexed reviews: https://appshunter.io/ios/app/unit-converter-hd/id481973377/reviews.md

### 5/5 — Excellent App

*2026-07-29*

I use it frequently. It proves quite helpful especially going from English to metric. One problem, however, it fills the screen on my phone and will not let me out.  I have had to eliminate it from my phone so that I accidentally decide to use it.  I trust the at developers will fix that problem.

### 4/5 — Home User

*2026-02-22, version 8.1*

Need US weights (tons, lbs., oz.)

### 5/5 — Review

*2025-12-22, version 8.1*

Works great ,easy to use, very handy app.

### 5/5 — So Handy

*2025-11-28, version 8.0*

I’m so thankful for this app. I love being able to quickly get conversions for any any measurement.

### 5/5 — Super Handy!

*2025-10-07, version 8.0*

I am always finding a use for this app.

### 5/5 — Very useful

*2025-07-10, version 7.9*

Easy to use

### 4/5 — Unit converter

*2024-09-28, version 7.4*

It is very good

### 5/5 — Dependable

*2024-08-31, version 7.3*

Use in the shop.  Very dependable

### 5/5 — Excelente

*2024-08-18, version 7.2*

Excelente aplicación para todo tipo de medición y conversión es de mi uso frecuente

### 4/5 — Always useful

*2024-08-14*

I have utilized this app to convert many different types of measurements from new floor options, materials needed to understand pricing. Or being able to convert standard measurements in the U.S. to metric system. Etc. My only complaint is the requirement to view at the horizontal, or wide screen requiring you to turn your phone to use at all. Perfect option would be to start with an upright position and give options for type of measurement needed then to turn screen to view all the conversations.

## Frequently asked questions about Unit Converter HD.

### What does Unit Converter HD do?

Unit Converter HD is a powerful application designed to help users easily convert between more than 700 different units of measure across 30 distinct categories. It aims to be a universal assistant for all unit conversion requirements, saving users time and effort.

### What are the key features of Unit Converter HD?

The app boasts over 700 units of measure spread across 30 categories, making it highly comprehensive. It features an extremely easy-to-use interface, a backspace key for quick corrections, and supports dark mode for a comfortable viewing experience.

### Is Unit Converter HD free to use?

Yes, the application is available for free. However, it does include advertisements and offers in-app purchases, suggesting that some advanced features or an ad-free experience might be available for purchase.

### What kind of conversions can I perform with this app?

You can perform a wide array of conversions, including but not limited to length, weight, volume, temperature, time, speed, and many more, all categorized for easy access. The app covers over 700 units across 30 different categories.

### Who would benefit from using Unit Converter HD?

This app is ideal for students, engineers, scientists, travelers, or anyone who frequently encounters different units of measurement and needs a reliable and quick way to convert them. Its extensive unit library and user-friendly design make it a versatile tool.

## Version history (last 5 releases)

### 8.4 — 2026-08-18

+ Refinement of functions

### 8.3 — 2026-05-07

+ Refinement of functions

### 8.2 — 2026-03-11

+ Bug fixes and performance improvements.

### 8.1 — 2025-12-12

+ Bug fixes and stability improvements

### 8.0 — 2025-09-29

+ Bug fixes and stability improvements

## Apps similar to Unit Converter HD.

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [GlobeConvert Currency & Units](https://appshunter.io/ios/app/globeconvert-currency-and-units/id334851202) | 4.8 (80,844) | Free | Utilities |
| [Fancy Units Converter](https://appshunter.io/ios/app/fancy-units-converter/id850306139) | 4.7 (1,595) | Free | Utilities |
| [Unit Converter Currency Rate](https://appshunter.io/ios/app/unit-converter-currency-rate/id1557869688) | 4.6 (195) | Free | Utilities |
| [Units - Pro Unit Converter](https://appshunter.io/ios/app/units-pro-unit-converter/id284574017) | 3.6 (150) | Free | Utilities |
| [Unit Converter - 14-in-1](https://appshunter.io/ios/app/unit-converter-14-in-1/id1587655048) | 5.0 (3) | Free | Utilities |
| [Unit Converter, 50+ Calculator](https://appshunter.io/ios/app/unit-converter-50-plus-calculator/id1006382972) | 4.3 (53) | Free | Utilities |

## More apps by 良峰 侯

- [Calculator Easy HD](https://appshunter.io/ios/app/calculator-easy-hd/id448246366)
- [Unit Converter Pro HD.](https://appshunter.io/ios/app/unit-converter-pro-hd/id458584668)
- [Currency Exchange](https://appshunter.io/ios/app/currency-exchange/id494172851)
- [Level HD.](https://appshunter.io/ios/app/level-hd/id510249014)
- [Toolkit](https://appshunter.io/ios/app/toolkit/id577678277)

All apps by 良峰 侯: https://appshunter.io/developer/654444245

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*