# PolyCar Lab Time Attack vs Engine Simulator

The clearest difference is ratings volume: Engine Simulator at 136 against PolyCar Lab Time Attack's 1. Engine Simulator also leads on rating (4.2 vs 4.0) and chart position (#61 vs unranked). PolyCar Lab Time Attack's advantage is review sentiment (100% vs 79%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. PolyCar Lab Time Attack sells 1 one-off in-app purchase and Engine Simulator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Engine Simulator holds the better App Store score, 4.2 against 4.0. That said, the two scores are not equally well evidenced: Engine Simulator has 136 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of PolyCar Lab Time Attack's written reviews are positive against 79% of Engine Simulator's, so the app with the better star average is not the one people write more warmly about.

PolyCar Lab Time Attack ships an update monthly, Engine Simulator every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | PolyCar Lab Time Attack | Engine Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/polycar-lab-time-attack/id6762128407/reviews) | **[4.2 (136 ratings)](https://appshunter.io/ios/app/engine-simulator/id6772016143/reviews)** |
| Number of ratings | 1 | **136** |
| Positive reviews | **100.0% of reviews** | 78.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#61** |
| Size | 105 MB | 22 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Garage Imagina SL](https://appshunter.io/developer/1528703610) | [MUHAMMAD SAAD ATA](https://appshunter.io/developer/6772016385) |

## What reviewers say

### PolyCar Lab Time Attack

[App page](https://appshunter.io/ios/app/polycar-lab-time-attack/id6762128407)

Experience low-poly racing with strategic tire choices and pit stops. Compete against AI rivals, manage your strategy in changing weather, and hone your skills in time attack mode. Customize your car setup and driving views for a personalized racing experience.

**Highlights:** Race against seven AI rivals, Strategic tire selection (soft, medium, hard, wet), Dynamic pit stop planning, Changing weather conditions, Time Attack mode with ghost replays, Car setup customization, Multiple driving views

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $3.99 | one-time |


### Engine Simulator

[App page](https://appshunter.io/ios/app/engine-simulator/id6772016143)

**Currently charting:** #61 Top Grossing · Racing, #77 Top Free · Racing (US App Store)

Explore the physics of piston engines by building, tuning, and testing them. Simulate combustion and rigid body motion in real-time. Compete with others on a global leaderboard by posting your creations.

**Highlights:** Physics-based engine simulation, Build engines from scratch, Tune fuel and ignition maps, Real-time power and torque readings, 3D engine visualization, Global leaderboard

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime | $8.99 | one-time |


## Frequently asked questions

### Is PolyCar Lab Time Attack free?

PolyCar Lab Time Attack is free to download, with in-app purchases available.

### Is Engine Simulator free?

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

### Which has better reviews, PolyCar Lab Time Attack or Engine Simulator?

Engine Simulator is rated higher. PolyCar Lab Time Attack averages 4.0 out of 5 from 1 ratings, while Engine Simulator averages 4.2 from 136 ratings.

### Do PolyCar Lab Time Attack or Engine Simulator have ads?

Neither PolyCar Lab Time Attack nor Engine Simulator shows ads.

### Which is updated more often, PolyCar Lab Time Attack or Engine Simulator?

PolyCar Lab Time Attack ships an update monthly, and Engine Simulator every 3 weeks. Most recently, PolyCar Lab Time Attack was updated on October 25, 2026 and Engine Simulator on October 25, 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.*