# Car Engine and Suspension vs Transaction Trainer

The clearest difference is price: Car Engine and Suspension at Free against Transaction Trainer's $1.99. Car Engine and Suspension also leads on ratings volume (74 vs 1). Transaction Trainer's advantage is rating (5.0 vs 4.2) and ads (none vs shown). On in-app purchases and device support there is nothing between them.

Car Engine and Suspension is free to download; Transaction Trainer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Transaction Trainer holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Car Engine and Suspension has 74 ratings behind it against 1, so its average is the more settled of the two.

Car Engine and Suspension ships an update every 18 months, Transaction Trainer every 6 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Car Engine and Suspension | Transaction Trainer |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.2 (74 ratings)](https://appshunter.io/ios/app/car-engine-and-suspension/id6471146773/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/transaction-trainer/id6745894353/reviews)** |
| Number of ratings | **74** | 1 |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 18 months | **Every 6 months** |
| Monetization | **Ad-supported** | Paid |
| Size | 198 MB | 73 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Renzo Macedo](https://appshunter.io/developer/1403943580) | [Simcoach Games](https://appshunter.io/developer/1682126328) |

## What reviewers say

### Car Engine and Suspension

[App page](https://appshunter.io/ios/app/car-engine-and-suspension/id6471146773)

Explore detailed animated models of internal combustion engines and car suspension systems. Observe components in action, understand their functions, and experiment with suspension configurations to learn about automotive mechanics.

**Highlights:** Transparent internal combustion engine model, Animated suspension system visualization, Variable suspension system configuration, Slow-motion detail viewing, Component exploration

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

**In-app purchases:** none


### Transaction Trainer

[App page](https://appshunter.io/ios/app/transaction-trainer/id6745894353)

This app helps users understand how debit cards work by simulating purchases at various storefronts. Users can practice using different point-of-sale terminals and track their spending in a virtual ledger.

**Highlights:** Simulates debit card purchases, Practice with chip and swipe terminals, Track spending in a virtual ledger, Explore example storefronts, Learn about point-of-sale buttons

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Car Engine and Suspension free?

Car Engine and Suspension is free to download, with no in-app purchases.

### Is Transaction Trainer free?

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

### Which has better reviews, Car Engine and Suspension or Transaction Trainer?

Transaction Trainer is rated higher. Car Engine and Suspension averages 4.2 out of 5 from 74 ratings, while Transaction Trainer averages 5.0 from 1 ratings.

### Do Car Engine and Suspension or Transaction Trainer have ads?

Car Engine and Suspension shows ads; Transaction Trainer does not.

### Which is updated more often, Car Engine and Suspension or Transaction Trainer?

Car Engine and Suspension ships an update every 18 months, and Transaction Trainer every 6 months. Most recently, Car Engine and Suspension was updated on November 3, 2026 and Transaction Trainer on November 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.*