# Engine Sim vs RevLab

The clearest difference is chart position: Engine Sim at #54 against RevLab's unranked. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Engine Sim sells 10 one-off in-app purchases and RevLab sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Engine Sim | RevLab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (73 ratings)](https://appshunter.io/ios/app/engine-sim-sound-simulator/id6787443044/reviews)** | — |
| Number of ratings | **73** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 days | — |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#54** | — |
| Size | 43 MB | 118 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Sena Takasawa](https://appshunter.io/developer/1887478690) | [Jehyung Lee](https://appshunter.io/developer/1862976985) |

## What reviewers say

### Engine Sim

[App page](https://appshunter.io/ios/app/engine-sim-sound-simulator/id6787443044)

**Currently charting:** #54 Top Free · Entertainment (US App Store)

Experience realistic engine sounds with interactive controls. Explore a variety of engines, from kei cars to V12s, and feel the vibrations. Practice gear shifting and rev-matching for an immersive automotive simulation.

**Highlights:** 10 realistic engine sounds, Interactive throttle control, Live engine sound generation, Straight-pipe mode, Haptic feedback, H-pattern shifter and paddles, Rev-matching practice

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quick Shifter | $1.99 | one-time |
| Big Radiator | $1.99 | one-time |
| Over-Rev Kit | $1.99 | one-time |
| Single 450 Moto | $1.99 | one-time |
| Today's Engine (I6/V8) | $1.99 | one-time |
| Big Bore Kit | $2.99 | one-time |
| Custom Gearbox | $3.99 | one-time |
| Today's Engine (V10/V12) | $4.99 | one-time |
| Straight Pipe | $5.99 | one-time |
| Pro Parts Pack | $9.99 | one-time |


### RevLab

[App page](https://appshunter.io/ios/app/revlab-engine-simulator/id6817417979)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RevLab Pro | $4.99 | one-time |


## Frequently asked questions

### Is Engine Sim free?

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

### Is RevLab free?

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

### Do Engine Sim or RevLab have ads?

Both Engine Sim and RevLab show ads.

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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.*