# Exhaust Note vs RevLab

The clearest difference is rating: Exhaust Note at 4.7 against RevLab's 3.6. Exhaust Note also leads on review sentiment (93% vs 60%) and update cadence (every 2 days vs weekly). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Exhaust Note 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.

Exhaust Note holds the better App Store score, 4.7 against 3.6. Both are backed by a comparable volume of ratings — 12 and 5 respectively. Written reviews point the same way: 93% of Exhaust Note's written reviews are positive against 60% of RevLab's.

Exhaust Note ships an update every 2 days, RevLab weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Exhaust Note | RevLab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (12 ratings)](https://appshunter.io/ios/app/exhaust-note-car-engine-sound/id6797558385/reviews)** | [3.6 (5 ratings)](https://appshunter.io/ios/app/revlab-engine-simulator/id6817417979/reviews) |
| Number of ratings | **12** | 5 |
| Positive reviews | **92.6% of reviews** | 60.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | Ad-supported | — |
| Size | 39 MB | 139 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [seihee han](https://appshunter.io/developer/629944907) | [Jehyung Lee](https://appshunter.io/developer/1862976985) |

## What reviewers say

### Exhaust Note

[App page](https://appshunter.io/ios/app/exhaust-note-car-engine-sound/id6797558385)

This app synthesizes realistic engine exhaust sounds from scratch, based on the physics of firing orders and cylinder layouts. Explore various engine configurations, adjust muffler settings, and experience dynamic features like pops, bangs, and flames. It also includes a detailed 3D engine animation and driving simulation elements.

**Highlights:** Real-time synthesized exhaust sounds, Adjustable muffler settings, Diverse engine presets, Pop, bang, and flame effects, Living 3D engine animation, Driving feel simulation, Tunnel reverb mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### RevLab

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

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Exhaust Note free?

Exhaust Note 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, Exhaust Note or RevLab?

Exhaust Note is rated higher. Exhaust Note averages 4.7 out of 5 from 12 ratings, while RevLab averages 3.6 from 5 ratings.

### Do Exhaust Note or RevLab have ads?

Both Exhaust Note and RevLab show ads.

### Which is updated more often, Exhaust Note or RevLab?

Exhaust Note ships an update every 2 days, and RevLab weekly. Most recently, Exhaust Note was updated on October 25, 2026 and RevLab on October 24, 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.*