# Trans4motor vs Measuro

The clearest difference is price: Measuro at Free against Trans4motor's $2.99. Measuro also leads on update cadence (every 9 days vs every 2 months). Trans4motor's advantage is ads (none vs shown) and iOS requirement (15.0 vs 17.6). On in-app purchases and device support there is nothing between them.

Measuro is free to download; Trans4motor costs $2.99 up front. Trans4motor sells 1 one-off in-app purchase and Measuro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Trans4motor ships an update every 2 months, Measuro every 9 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Trans4motor | Measuro |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.7 (70 ratings)](https://appshunter.io/ios/app/trans4motor-engine-simulator/id899277186/reviews)** | — |
| Number of ratings | **70** | — |
| Positive reviews | 56.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 27 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kitt Peak, Inc.](https://appshunter.io/developer/399507326) | [Alberto Dimanuel](https://appshunter.io/developer/1886560457) |

## What reviewers say

### Trans4motor

[App page](https://appshunter.io/ios/app/trans4motor-engine-simulator/id899277186)

Explore the mechanics of 4-stroke engines with this interactive simulator. Visualize the transformation of various engine types and understand their internal workings through detailed CG animation. Enhance your knowledge with adjustable settings and realistic engine sound options.

**Highlights:** Multi-cylinder engine transformation, Realistic engine sound (in-app purchase), Accelerator control simulation, Expandable engine library, Custom engine registration and editing, Interactive educational videos

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add Engine Sound | $1.99 | one-time |


### Measuro

[App page](https://appshunter.io/ios/app/measuro-unit-converter/id6760968030)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Trans4motor free?

Trans4motor costs $2.99, and also offers in-app purchases.

### Is Measuro free?

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

### Do Trans4motor or Measuro have ads?

Measuro shows ads; Trans4motor does not.

### Which is updated more often, Trans4motor or Measuro?

Trans4motor ships an update every 2 months, and Measuro every 9 days. Most recently, Trans4motor was updated on November 6, 2026 and Measuro on October 31, 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.*