# Engine LD vs Trans4motor R

The clearest difference is update cadence: Trans4motor R at every 2 weeks against Engine LD's every 5 months. Engine LD's advantage is price ($2.99 vs $7.99) and iOS requirement (13.0 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

Engine LD costs $2.99 and Trans4motor R $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Engine LD ships an update every 5 months, Trans4motor R every 2 weeks. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Engine LD | Trans4motor R |
| --- | --- | --- |
| Price | **$2.99** | $7.99 |
| Rating | — | **[4.6 (11 ratings)](https://appshunter.io/ios/app/trans4motor-r/id6739180076/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 64.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | — | Paid |
| Size | 10 MB | 178 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI](https://appshunter.io/developer/914295588) | [Kitt Peak, Inc.](https://appshunter.io/developer/399507326) |

## What reviewers say

### Engine LD

[App page](https://appshunter.io/ios/app/engine-ld/id930614716)

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

**In-app purchases:** none


### Trans4motor R

[App page](https://appshunter.io/ios/app/trans4motor-r/id6739180076)

Explore and animate four-stroke engines with detailed customization options. Simulate transmissions, edit engine specifications, and experience realistic vehicle physics. Share your creations and learn about engine mechanics through interactive tutorials.

**Highlights:** Seamless engine morphing (inline to V, cylinder count, firing intervals), Full transmission visualization (3-shaft, 2-shaft, dog gearbox), Deep engine specification editing, Realistic vehicle physics simulation, Community sharing platform for engine designs, Interactive learning modes (TechTour), Enhanced, realistic engine sound simulation

**In-app purchases:** none


## Frequently asked questions

### Is Engine LD free?

Engine LD costs $2.99, with no in-app purchases.

### Is Trans4motor R free?

Trans4motor R costs $7.99, with no in-app purchases.

### Do Engine LD or Trans4motor R have ads?

Neither Engine LD nor Trans4motor R shows ads.

### Which is updated more often, Engine LD or Trans4motor R?

Engine LD ships an update every 5 months, and Trans4motor R every 2 weeks. Most recently, Engine LD was updated on October 9, 2026 and Trans4motor R on October 15, 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.*