Car Engine and Suspension vs Transaction Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Car Engine and Suspension
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.
- Transparent internal combustion engine model
- Animated suspension system visualization
- Variable suspension system configuration
- Slow-motion detail viewing
- Component exploration
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See how a car engine and suspension move with animated 3D models. Car Engine and Suspension is a visual exploration app for automotive enthusiasts, students and anyone curious about mechanical systems. EXPLORE A FOUR-CYLINDER ENGINE Observe an inline engine in motion, including pistons, connecting rods, crankshaft and valves. Use the transparent view to see internal components working together. EXAMINE THE SUSPENSION Watch the suspension assembly move and explore the available controls for wheel geometry, springs and damping. Compare the movement of the components as you adjust the model. LOOK MORE CLOSELY Rotate and zoom the view, and use slow motion to examine the animations at your own pace. This app focuses on observing and exploring its included models. It does not offer an engine builder, a collection of different engine types or step-by-step vehicle repair instructions. Includes advertising. No account is required to explore the models.
Transaction Trainer
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.
- 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
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In school we learned about coins and bills, but this is a plastic card! Where’s the money? Where does it come from? How do I know how much I have? Transaction Trainer is a tool designed to help demystify the Card! Explore the intricacies of using a debit card to make purchases at a wide selection of example storefronts; practice the use of both chip-enabled or swipe only point of sale terminals; learn what buttons are important and which you can safely ignore; and take a peek behind the curtain by keeping track of your purchases in a virtual ledger. Transaction Trainer is a research-based app that will help make concrete the abstract world of the Card.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Car Engine and Suspension | Transaction Trainer |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.2 (74 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 62.5% of reviews | — |
| Number of ratings | 74 — better | 1 |
| Update frequency | Every 18 months | Every 6 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 198 MB | 73 MB |
| Age rating | 17+ | 4+ |
| Developer | Renzo Macedo | Simcoach Games |
In-app purchases
Car Engine and Suspension
No in-app purchases
Transaction Trainer
No in-app purchases
Questions
Is Car Engine and Suspension free?
Is Transaction Trainer free?
Which has better reviews, Car Engine and Suspension or Transaction Trainer?
Do Car Engine and Suspension or Transaction Trainer have ads?
Which is updated more often, Car Engine and Suspension or Transaction Trainer?
Other comparisons
