# Units vs Unity

The clearest difference is rating: Unity at 4.2 against Units's 3.6. Unity also leads on ads (none vs shown) and device support (5 vs 2). Units's advantage is review sentiment (60% vs 44%) and ratings volume (163 vs 25). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Units sells 3 one-off in-app purchases and Unity sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Unity holds the better App Store score, 4.2 against 3.6. That said, the two scores are not equally well evidenced: Units has 163 ratings behind it against 25, so its average is the more settled of the two. Written reviews complicate that: 60% of Units's written reviews are positive against 44% of Unity's, so the app with the better star average is not the one people write more warmly about.

Units ships an update monthly, Unity every 2 months. The most recent releases landed on November 10, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Units | Unity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (163 ratings)](https://appshunter.io/ios/app/units-pro-unit-converter/id284574017/reviews) | **[4.2 (25 ratings)](https://appshunter.io/ios/app/unity-the-best-unit-converter/id828401996/reviews)** |
| Number of ratings | **163** | 25 |
| Positive reviews | **60.1% of reviews** | 44.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 86 MB | 14 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Homegrown Software Ltd](https://appshunter.io/developer/406645730) | [Peachy Ventures Ltd.](https://appshunter.io/developer/828401999) |

## What reviewers say

### Units

[App page](https://appshunter.io/ios/app/units-pro-unit-converter/id284574017)

Easily convert between hundreds of units across 43 categories, including currency with daily updated rates. Customize your workflow by hiding or reordering units and categories.

**Highlights:** Hundreds of units across 43 categories, Daily updated currency exchange rates, Hide unused units, Reorder units and categories, Universal app support (iPhone, iPod touch, iPad)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |

**What reviewers like**

- 🚀 Efficient and fast conversions
- 👍 Comprehensive list of units
- 🔍 Customizable unit selection
- 💰 Free app with optional paid version
- 🔧 Useful for engineering and technical work

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 🕰️ Outdated currency conversion rates
- 🔍 Too many unit categories, hard to navigate
- 💰 Ads in free version
- 📏 Ruler feature not accurate on some devices

**Reported bugs**

- Crashes when clearing input fields
- Numerical keypad covers conversion results
- Incompatibility issues with newer iOS versions
- Ruler measurements not accurate on all devices

**Requested features**

- Add nautical units (miles, knots)
- Improve currency conversion accuracy and updates
- Allow customization of visible unit categories
- Add more clothing/shoe size conversions
- Improve user interface and search functionality


### Unity

[App page](https://appshunter.io/ios/app/unity-the-best-unit-converter/id828401996)

This app offers precise and powerful unit and currency conversion with over 600 conversion types. Save frequent conversions as favorites and access them easily from the home screen. It provides real-time currency rates and historical graphs, with customizable decimal points and calculator functionality.

**Highlights:** Over 600 conversion types, Favorites for quick access, Real-time currency rates, Currency graphs, Customizable decimal points, Built-in calculator

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Full Features | $2.99 | one-time |


## Frequently asked questions

### Is Units free?

Units is free to download, with in-app purchases available.

### Is Unity free?

Unity is free to download, with in-app purchases available.

### Which has better reviews, Units or Unity?

Unity is rated higher. Units averages 3.6 out of 5 from 163 ratings, while Unity averages 4.2 from 25 ratings.

### Do Units or Unity have ads?

Units shows ads; Unity does not.

### Which is updated more often, Units or Unity?

Units ships an update monthly, and Unity every 2 months. Most recently, Units was updated on November 10, 2026 and Unity on November 1, 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.*