# Unit Converter HD. vs Convertible

The clearest difference is in-app purchases: Convertible at none against Unit Converter HD.'s 1. Convertible also leads on ads (none vs shown) and iOS requirement (8.0 vs 13.0). Unit Converter HD.'s advantage is ratings volume (644 vs 101). On price, rating, review sentiment and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.7 for Unit Converter HD. against 4.8 for Convertible. That said, the two scores are not equally well evidenced: Unit Converter HD. has 644 ratings behind it against 101, so its average is the more settled of the two. Written reviews are what separate them: 94% of Unit Converter HD.'s written reviews are positive against 89% of Convertible's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 20, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Unit Converter HD. | Convertible |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (644 ratings)](https://appshunter.io/ios/app/unit-converter-hd/id481973377/reviews) | **[4.8 (101 ratings)](https://appshunter.io/ios/app/convertible-unit-converter/id514233370/reviews)** |
| Number of ratings | **644** | 101 |
| Positive reviews | **93.8% of reviews** | 89.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 86 MB | 12 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [Efecto Pty Ltd](https://appshunter.io/developer/331691709) |

## 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


### Convertible

[App page](https://appshunter.io/ios/app/convertible-unit-converter/id514233370)

This app offers a comprehensive unit and currency conversion tool with a visually appealing interface and extensive unit options. It supports standard and non-standard units, compound conversions, and fraction input, making it versatile for various needs.

**Highlights:** Extensive standard and non-standard unit conversions, Currency conversion with 161 currencies, Compound unit conversion, Fraction input and output, Adjustable decimal precision, Elegant interface with themes, iPad split view and Today Extension support

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💻 Excellent user interface
- ⚙️ Comprehensive set of conversion units
- 🔍 Intuitive and easy to use
- 🎨 Customizable color themes
- 🕰️ Saves last conversion

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔍 Navigation can be confusing at times
- 🔢 Lack of support for custom units

**Reported bugs**

- Conversion results not always accurate
- Crashes when trying to share conversion results

**Requested features**

- Add support for more measurement categories (e.g. fuel consumption, flow rate)
- Implement a search function to easily find units
- Provide a widget for quick access to conversions
- Add support for more languages


## Frequently asked questions

### Is Unit Converter HD. free?

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

### Is Convertible free?

Convertible is free to download, with no in-app purchases.

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

Convertible is rated higher. Unit Converter HD. averages 4.7 out of 5 from 644 ratings, while Convertible averages 4.8 from 101 ratings.

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

Unit Converter HD. shows ads; Convertible does not.

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

Unit Converter HD. ships an update every 2 months, and Convertible every 2 months. Most recently, Unit Converter HD. was updated on October 20, 2026 and Convertible on October 23, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*