# Engine Sound vs RevLab

The clearest difference is rating: Engine Sound at 5.0 against RevLab's 3.8. Engine Sound also leads on ads (none vs shown). RevLab's advantage is device support (3 vs 1) and ratings volume (6 vs 2). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

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

Engine Sound holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 2 and 6 respectively.

Engine Sound ships an update every 6 days, RevLab weekly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Engine Sound | RevLab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/engine-sound-car-and-ev-sound/id6816795459/reviews)** | [3.8 (6 ratings)](https://appshunter.io/ios/app/revlab-engine-simulator/id6817417979/reviews) |
| Number of ratings | 2 | **6** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 139 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Suzuki Medical Engineering LLC](https://appshunter.io/developer/1882402717) | [Jehyung Lee](https://appshunter.io/developer/1862976985) |

## What reviewers say

### Engine Sound

[App page](https://appshunter.io/ios/app/engine-sound-car-and-ev-sound/id6816795459)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Engines | $1.99 | one-time |


### RevLab

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

Experience realistic engine simulations with physics-driven sound, haptics, and interactive gauges. Drive a variety of engines, from V8s to electric cars, and test their performance on a drag strip. Features detailed engine components and real-time feedback.

**Highlights:** Real-time physics-driven engine simulation, Computed engine sounds based on components, Interactive 3D engine models, Drag strip performance testing, Multiple engine types and configurations, Manual and automatic transmission simulation, Haptic feedback for engine and gear engagement

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Engine Sound free?

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

### Is RevLab free?

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

### Which has better reviews, Engine Sound or RevLab?

Engine Sound is rated higher. Engine Sound averages 5.0 out of 5 from 2 ratings, while RevLab averages 3.8 from 6 ratings.

### Do Engine Sound or RevLab have ads?

RevLab shows ads; Engine Sound does not.

### Which is updated more often, Engine Sound or RevLab?

Engine Sound ships an update every 6 days, and RevLab weekly. Most recently, Engine Sound was updated on November 6, 2026 and RevLab on October 31, 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.*