# Units Converter+ vs Unit Converter For Engineers

The clearest difference is in-app purchases: Units Converter+ at none against Unit Converter For Engineers's 2. Units Converter+ also leads on iOS requirement (10.0 vs 16.2). Unit Converter For Engineers's advantage is review sentiment (100% vs 83%) and update cadence (every 9 days vs monthly). On price, rating, ads and device support there is nothing between them.

Both are free to download. Unit Converter For Engineers sells 2 in-app purchases, starting at $9.99 per year. Units Converter+ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Units Converter+ against 5.0 for Unit Converter For Engineers. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews are what separate them: 83% of Units Converter+'s written reviews are positive against 100% of Unit Converter For Engineers's.

Units Converter+ ships an update monthly, Unit Converter For Engineers every 9 days. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Units Converter+ | Unit Converter For Engineers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/units-converter-plus/id895360448/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/unit-converter-for-engineers/id6752224915/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | **Free** | Freemium |
| Size | 5 MB | 5 MB |
| Requires iOS | **10.0** | 16.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Fusion Software Development Pty Ltd](https://appshunter.io/developer/872570075) | [Amanuel Abebaw](https://appshunter.io/developer/1766393564) |

## What reviewers say

### Units Converter+

[App page](https://appshunter.io/ios/app/units-converter-plus/id895360448)

This free utility tool helps you convert between over 400 units across more than 20 categories. It features a simple interface, fast calculations, and automatic updates for currency exchange rates.

**Highlights:** Over 400 units, 20+ conversion categories, Simple and easy UI, Fast calculations, Latest currency rates, Automatic currency updates, Mixed-unit support

**Features:** macOS Compatibility

**In-app purchases:** none


### Unit Converter For Engineers

[App page](https://appshunter.io/ios/app/unit-converter-for-engineers/id6752224915)

This app provides a comprehensive unit conversion tool specifically designed for engineers, offering specialized units not found in standard converters. It features offline functionality, fast search, and a clean interface, replacing the need for multiple reference materials.

**Highlights:** Specialized engineering units, Offline functionality, Fast search and instant conversion, Fraction input mode, Ad-free interface, Scientific notation support

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $9.99 | per year |
| Lifetime Access | $29.99 | one-time |


## Frequently asked questions

### Is Units Converter+ free?

Units Converter+ is free to download, with no in-app purchases.

### Is Unit Converter For Engineers free?

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

### Which has better reviews, Units Converter+ or Unit Converter For Engineers?

Units Converter+ and Unit Converter For Engineers are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Units Converter+ or Unit Converter For Engineers have ads?

Neither Units Converter+ nor Unit Converter For Engineers shows ads.

### Which is updated more often, Units Converter+ or Unit Converter For Engineers?

Units Converter+ ships an update monthly, and Unit Converter For Engineers every 9 days. Most recently, Units Converter+ was updated on October 24, 2026 and Unit Converter For Engineers on October 18, 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.*