# Engineer's Unit Converter vs Coil Toolkit Pro

The clearest difference is in-app purchases: Coil Toolkit Pro at none against Engineer's Unit Converter's 1. Coil Toolkit Pro also leads on ads (none vs shown) and iOS requirement (13.0 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Engineer's Unit Converter sells 1 one-off in-app purchase. Coil Toolkit Pro asks for nothing beyond the download.

## The numbers

| Metric | Engineer's Unit Converter | Coil Toolkit Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Size | 7 MB | 29 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jose Gerardo Palma Duran](https://appshunter.io/developer/1873843788) | [Mamta Kevadiya](https://appshunter.io/developer/6776068885) |

## What reviewers say

### Engineer's Unit Converter

[App page](https://appshunter.io/ios/app/engineers-unit-converter/id6758744042)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Coil Toolkit Pro

[App page](https://appshunter.io/ios/app/coil-toolkit-pro/id6778254078)

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

**In-app purchases:** none


## Frequently asked questions

### Is Engineer's Unit Converter free?

Engineer's Unit Converter is free to download, with in-app purchases available.

### Is Coil Toolkit Pro free?

Coil Toolkit Pro is free to download, with no in-app purchases.

### Do Engineer's Unit Converter or Coil Toolkit Pro have ads?

Engineer's Unit Converter shows ads; Coil Toolkit Pro does not.

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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.*