# Unit Converter HD. vs Unit Plus Converter

The clearest difference is in-app purchases: Unit Plus Converter at none against Unit Converter HD.'s 1. Unit Plus Converter also leads on ads (none vs shown) and iOS requirement (11.0 vs 13.0). Unit Converter HD.'s advantage is update cadence (every 2 months vs every 5 months). On price, rating, review sentiment and ratings volume there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.7 for Unit Converter HD. against 4.7 for Unit Plus Converter. Both are backed by a comparable volume of ratings — 644 and 564 respectively. Written reviews are what separate them: 94% of Unit Converter HD.'s written reviews are positive against 100% of Unit Plus Converter's.

Unit Converter HD. ships an update every 2 months, Unit Plus Converter every 5 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Unit Converter HD. | Unit Plus Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (644 ratings)](https://appshunter.io/ios/app/unit-converter-hd/id481973377/reviews) | [4.7 (564 ratings)](https://appshunter.io/ios/app/unit-plus-converter/id1475355288/reviews) |
| Number of ratings | **644** | 564 |
| Positive reviews | 93.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 86 MB | 13 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [Harjot Singh](https://appshunter.io/developer/1084273258) |

## 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 Plus Converter

[App page](https://appshunter.io/ios/app/unit-plus-converter/id1475355288)

Easily convert between numerous units and metrics with this intuitive application. It offers over 100 common conversion units across various categories, presented in a simple and elegant interface.

**Highlights:** Over 100 conversion units, Multiple categories, Area conversion, Data conversion, Length conversion, Temperature conversion, Weight-mass conversion

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

**In-app purchases:** none

**What reviewers like**

- 👍 Brilliantly designed
- 👍 Easy to use
- 👍 No annoying banner ads
- 👍 Simple and clear interface
- 👍 Clean design

**What reviewers complain about**

- 🐛 Accuracy concerns (mpg to l/100km)
- 🐛 Conversion accuracy may be an issue

**Requested features**

- Kilogram to stones/pounds conversion
- Fractions of an inch down to 1/32” as a choice for conversion to mm


## Frequently asked questions

### Is Unit Converter HD. free?

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

### Is Unit Plus Converter free?

Unit Plus Converter is free to download, with no in-app purchases.

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

Unit Converter HD. and Unit Plus Converter are both rated 4.7 out of 5 on the App Store, from 644 and 564 ratings respectively.

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

Unit Converter HD. shows ads; Unit Plus Converter does not.

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

Unit Converter HD. ships an update every 2 months, and Unit Plus Converter every 5 months. Most recently, Unit Converter HD. was updated on October 16, 2026 and Unit Plus Converter on October 14, 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.*