# Engineer's Unit Converter vs Wire Color Codes

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

Both are free to download. Engineer's Unit Converter sells 1 one-off in-app purchase and Wire Color Codes sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Engineer's Unit Converter ships an update monthly, Wire Color Codes every 4 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Engineer's Unit Converter | Wire Color Codes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 4 weeks** |
| Size | 7 MB | 11 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jose Gerardo Palma Duran](https://appshunter.io/developer/1873843788) | [CLOUD HONEST LLC](https://appshunter.io/developer/1882750146) |

## 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 |


### Wire Color Codes

[App page](https://appshunter.io/ios/app/wire-color-codes-ohmlify/id6763763058)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Annual | $19.99 | per year |
| Ohmlify Pro | $39.99 | one-time |


## Frequently asked questions

### Is Engineer's Unit Converter free?

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

### Is Wire Color Codes free?

Wire Color Codes is free to download, with in-app purchases available.

### Do Engineer's Unit Converter or Wire Color Codes have ads?

Engineer's Unit Converter shows ads; Wire Color Codes does not.

### Which is updated more often, Engineer's Unit Converter or Wire Color Codes?

Engineer's Unit Converter ships an update monthly, and Wire Color Codes every 4 weeks. Most recently, Engineer's Unit Converter was updated on October 26, 2026 and Wire Color Codes on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*