# Mechanical Test Trainer vs SD36 Facilities

The clearest difference is price: SD36 Facilities at Free against Mechanical Test Trainer's $1.99. SD36 Facilities also leads on update cadence (every 2 months vs every 11 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

SD36 Facilities is free to download; Mechanical Test Trainer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mechanical Test Trainer ships an update every 11 months, SD36 Facilities every 2 months. The most recent releases landed on October 19, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Mechanical Test Trainer | SD36 Facilities |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[3.4 (20 ratings)](https://appshunter.io/ios/app/mechanical-test-trainer/id954212609/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 23.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 136 MB | 48 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seliant ApS](https://appshunter.io/developer/554676523) | [Surrey School District](https://appshunter.io/developer/634542422) |

## What reviewers say

### Mechanical Test Trainer

[App page](https://appshunter.io/ios/app/mechanical-test-trainer/id954212609)

Prepare for mechanical aptitude tests with over 300 practice questions. Track your progress with detailed explanations and customized test modes. Improve your understanding of mechanical concepts and tools.

**Highlights:** Over 300 practice questions, Detailed answer explanations, Customizable test modes, Progress tracking and score charts, Mechanical comprehension and knowledge practice, Electrical knowledge and tools sections

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

**In-app purchases:** none


### SD36 Facilities

[App page](https://appshunter.io/ios/app/sd36-facilities/id1309195479)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mechanical Test Trainer free?

Mechanical Test Trainer costs $1.99, with no in-app purchases.

### Is SD36 Facilities free?

SD36 Facilities is free to download, with no in-app purchases.

### Do Mechanical Test Trainer or SD36 Facilities have ads?

Neither Mechanical Test Trainer nor SD36 Facilities shows ads.

### Which is updated more often, Mechanical Test Trainer or SD36 Facilities?

Mechanical Test Trainer ships an update every 11 months, and SD36 Facilities every 2 months. Most recently, Mechanical Test Trainer was updated on October 19, 2026 and SD36 Facilities on October 5, 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.*