# Mechanical Toolkit vs QFE Converter

The clearest difference is in-app purchases: QFE Converter at none against Mechanical Toolkit's 1. QFE Converter also leads on update cadence (every 9 months vs every 20 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Mechanical Toolkit sells 1 one-off in-app purchase. QFE Converter asks for nothing beyond the download.

Mechanical Toolkit ships an update every 20 months, QFE Converter every 9 months. The most recent releases landed on September 14, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Mechanical Toolkit | QFE Converter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 9 months** |
| Size | 49 MB | 2 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shital Gorasiya](https://appshunter.io/developer/1737199158) | [Iurii Kurinnoi](https://appshunter.io/developer/1757414776) |

## What reviewers say

### Mechanical Toolkit

[App page](https://appshunter.io/ios/app/mechanical-toolkit/id6480299808)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Purchase | $4.99 | one-time |


### QFE Converter

[App page](https://appshunter.io/ios/app/qfe-converter/id6544801014)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mechanical Toolkit free?

Mechanical Toolkit is free to download, with in-app purchases available.

### Is QFE Converter free?

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

### Do Mechanical Toolkit or QFE Converter have ads?

Neither Mechanical Toolkit nor QFE Converter shows ads.

### Which is updated more often, Mechanical Toolkit or QFE Converter?

Mechanical Toolkit ships an update every 20 months, and QFE Converter every 9 months. Most recently, Mechanical Toolkit was updated on September 14, 2026 and QFE Converter on September 12, 2026.

---

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