# Unit Converter Elite vs Unit Converter Engineering Pro

The clearest difference is in-app purchases: Unit Converter Elite at none against Unit Converter Engineering Pro's 2. Unit Converter Elite also leads on iOS requirement (11.0 vs 13.0). Unit Converter Engineering Pro's advantage is ads (none vs shown) and update cadence (weekly vs every 53 months). On price and device support there is nothing between them.

Both are free to download. Unit Converter Engineering Pro sells 2 in-app purchases, starting at $5.99 per 7 days. Unit Converter Elite asks for nothing beyond the download.

Unit Converter Elite ships an update every 53 months, Unit Converter Engineering Pro weekly. The most recent releases landed on September 5, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Unit Converter Elite | Unit Converter Engineering Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/unit-converter-engineering-pro/id6757166485/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 53 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 14 MB | 77 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chuk Fong Ng](https://appshunter.io/developer/1086110905) | [Kaiguri Tech](https://appshunter.io/developer/1864995084) |

## What reviewers say

### Unit Converter Elite

[App page](https://appshunter.io/ios/app/unit-converter-elite/id1209045103)

**Features:** macOS Compatibility

**In-app purchases:** none


### Unit Converter Engineering Pro

[App page](https://appshunter.io/ios/app/unit-converter-engineering-pro/id6757166485)

This app provides precise unit conversions for engineers, scientists, and students. It supports over 100 units across 35 categories, including scientific notation and 9-digit decimal precision. The tool works offline and adheres to SI, NIST, and ISO standards.

**Highlights:** Over 100 units in 35+ categories, Scientific notation support, 9-digit decimal precision, SI, NIST, ISO compliant, Offline functionality, Specialized units included

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-Day Trial | $5.99 | per 7 days |
| Yearly Plan | $19.99 | per year |


## Frequently asked questions

### Is Unit Converter Elite free?

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

### Is Unit Converter Engineering Pro free?

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

### Do Unit Converter Elite or Unit Converter Engineering Pro have ads?

Unit Converter Elite shows ads; Unit Converter Engineering Pro does not.

### Which is updated more often, Unit Converter Elite or Unit Converter Engineering Pro?

Unit Converter Elite ships an update every 53 months, and Unit Converter Engineering Pro weekly. Most recently, Unit Converter Elite was updated on September 5, 2026 and Unit Converter Engineering Pro on September 15, 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.*