# Engineer's Unit Converter vs A32F Tech

The clearest difference is ads: A32F Tech at none against Engineer's Unit Converter's shown. A32F Tech also leads on update cadence (every 10 days vs monthly) and iOS requirement (15.1 vs 18.0). On price, 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 A32F Tech sells 2 in-app purchases, starting at $17.99 per month. Whichever you choose, the download price is not the number that matters.

Engineer's Unit Converter ships an update monthly, A32F Tech every 10 days. The most recent releases landed on October 26, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Engineer's Unit Converter | A32F Tech |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 10 days** |
| Size | 7 MB | 74 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jose Gerardo Palma Duran](https://appshunter.io/developer/1873843788) | [TRP Engineering Limited](https://appshunter.io/developer/6794718311) |

## 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 |


### A32F Tech

[App page](https://appshunter.io/ios/app/a32f-tech-ecam-resets/id6794718309)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A32F Tech Pro (Monthly) | $17.99 | per month |
| A32F Tech Pro (Yearly) | $17.99 | per year |


## Frequently asked questions

### Is Engineer's Unit Converter free?

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

### Is A32F Tech free?

A32F Tech is free to download, with in-app purchases available.

### Do Engineer's Unit Converter or A32F Tech have ads?

Engineer's Unit Converter shows ads; A32F Tech does not.

### Which is updated more often, Engineer's Unit Converter or A32F Tech?

Engineer's Unit Converter ships an update monthly, and A32F Tech every 10 days. Most recently, Engineer's Unit Converter was updated on October 26, 2026 and A32F Tech on October 9, 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.*