# Trans4motor R vs 国家3級自動車整備士 過去問題集

The clearest difference is price: 国家3級自動車整備士 過去問題集 at Free against Trans4motor R's $7.99. Trans4motor R's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

国家3級自動車整備士 過去問題集 is free to download; Trans4motor R costs $7.99 up front. 国家3級自動車整備士 過去問題集 sells 1 in-app purchase, starting at $1.99 per month. Trans4motor R asks for nothing beyond the download.

Trans4motor R ships an update every 2 weeks, 国家3級自動車整備士 過去問題集 every 8 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Trans4motor R | 国家3級自動車整備士 過去問題集 |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| 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** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | Paid | — |
| Size | 178 MB | 19 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kitt Peak, Inc.](https://appshunter.io/developer/399507326) | [Tatsuki Kato](https://appshunter.io/developer/1494538555) |

## What reviewers say

### 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


### 国家3級自動車整備士 過去問題集

[App page](https://appshunter.io/ios/app/3/id6751434955)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $1.99 | per month |


## Frequently asked questions

### Is Trans4motor R free?

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

### Is 国家3級自動車整備士 過去問題集 free?

国家3級自動車整備士 過去問題集 is free to download, with in-app purchases available.

### Do Trans4motor R or 国家3級自動車整備士 過去問題集 have ads?

国家3級自動車整備士 過去問題集 shows ads; Trans4motor R does not.

### Which is updated more often, Trans4motor R or 国家3級自動車整備士 過去問題集?

Trans4motor R ships an update every 2 weeks, and 国家3級自動車整備士 過去問題集 every 8 days. Most recently, Trans4motor R was updated on November 8, 2026 and 国家3級自動車整備士 過去問題集 on November 5, 2026.

---

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