# Engineering Converter vs Unit Converter Superior

The clearest difference is ads: Unit Converter Superior at none against Engineering Converter's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Engineering Converter ships an update every 42 months, Unit Converter Superior every 21 months. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Engineering Converter | Unit Converter Superior |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 42 months | **Every 21 months** |
| Size | 6 MB | 58 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brook Wallace](https://appshunter.io/developer/1234097174) | [Felix Peralta](https://appshunter.io/developer/1546086459) |

## What reviewers say

### Engineering Converter

[App page](https://appshunter.io/ios/app/engineering-converter/id1234097175)

**Features:** macOS Compatibility

**In-app purchases:** none


### Unit Converter Superior

[App page](https://appshunter.io/ios/app/unit-converter-superior/id1630757981)

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

**In-app purchases:** none


## Frequently asked questions

### Is Engineering Converter free?

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

### Is Unit Converter Superior free?

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

### Do Engineering Converter or Unit Converter Superior have ads?

Engineering Converter shows ads; Unit Converter Superior does not.

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

Engineering Converter ships an update every 42 months, and Unit Converter Superior every 21 months. Most recently, Engineering Converter was updated on October 16, 2026 and Unit Converter Superior on October 20, 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.*