# Unit Converter HD. vs Unit Converter & Dictionary

The clearest difference is ratings volume: Unit Converter HD. at 645 against Unit Converter & Dictionary's 1. Unit Converter HD. also leads on iOS requirement (13.0 vs 15.0). Unit Converter & Dictionary's advantage is rating (5.0 vs 4.7) and update cadence (every 3 weeks vs every 2 months). On price, ads, 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 Unit Converter & Dictionary sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Unit Converter & Dictionary 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 645 ratings behind it against 1, so its average is the more settled of the two.

Unit Converter HD. ships an update every 2 months, Unit Converter & Dictionary every 3 weeks. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Unit Converter HD. | Unit Converter & Dictionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (645 ratings)](https://appshunter.io/ios/app/unit-converter-hd/id481973377/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/unit-converter-and-dictionary/id6795361946/reviews)** |
| Number of ratings | **645** | 1 |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 86 MB | 13 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [Mikoto Gateway](https://appshunter.io/developer/6795057863) |

## 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 & Dictionary

[App page](https://appshunter.io/ios/app/unit-converter-and-dictionary/id6795361946)

This app offers comprehensive unit conversion across numerous categories, including specialized and traditional units. It also functions as a dictionary, explaining unit meanings, pronunciations, and providing fun facts. Real-time currency conversion is available, with an optional premium plan for AI assistance and ad removal.

**Highlights:** Extensive unit conversion categories, Unit dictionary with pronunciation and facts, Real-time currency conversion, Offline conversion capabilities, AI support for app usage (Premium), Traditional and specialized unit support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $0.99 | per month |


## Frequently asked questions

### Is Unit Converter HD. free?

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

### Is Unit Converter & Dictionary free?

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

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

Unit Converter & Dictionary is rated higher. Unit Converter HD. averages 4.7 out of 5 from 645 ratings, while Unit Converter & Dictionary averages 5.0 from 1 ratings.

### Do Unit Converter HD. or Unit Converter & Dictionary have ads?

Both Unit Converter HD. and Unit Converter & Dictionary show ads.

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

Unit Converter HD. ships an update every 2 months, and Unit Converter & Dictionary every 3 weeks. Most recently, Unit Converter HD. was updated on October 29, 2026 and Unit Converter & Dictionary on October 31, 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.*