# Exhaust Note vs RevApp

The clearest difference is review sentiment: Exhaust Note at 93% against RevApp's 0%. Exhaust Note also leads on rating (4.7 vs 2.0) and update cadence (every 2 days vs fortnightly). RevApp's advantage is ads (none vs shown) and iOS requirement (16.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Exhaust Note sells 1 one-off in-app purchase and RevApp sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Exhaust Note holds the better App Store score, 4.7 against 2.0. That said, the two scores are not equally well evidenced: Exhaust Note has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 93% of Exhaust Note's written reviews are positive against 0% of RevApp's.

Exhaust Note ships an update every 2 days, RevApp fortnightly. The most recent releases landed on November 2, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Exhaust Note | RevApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (14 ratings)](https://appshunter.io/ios/app/exhaust-note-car-engine-sound/id6797558385/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/revapp-engine-lab/id6817412919/reviews) |
| Number of ratings | **14** | 1 |
| Positive reviews | **93.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 39 MB | 10 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [seihee han](https://appshunter.io/developer/629944907) | [Maximilian Seiler](https://appshunter.io/developer/6817412921) |

## 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 |


### RevApp

[App page](https://appshunter.io/ios/app/revapp-engine-lab/id6817412919)

Experience the thrill of driving various car engines with realistic sound simulation. Accelerate, shift gears, and enjoy different soundscapes, all from your iPhone. It offers a garage of diverse engines and multiple driving modes.

**Highlights:** Realistic engine sound simulation, Multiple engine types (V12, V8, V6, etc.), Paddle-shift gear changes, Rev limiter and exhaust crackles, Haptic feedback on shifts, Offline play, Multiple sound environments

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supercar Garage | $3.99 | one-time |
| Car Collection | $6.99 | one-time |


## Frequently asked questions

### Is Exhaust Note free?

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

### Is RevApp free?

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

### Which has better reviews, Exhaust Note or RevApp?

Exhaust Note is rated higher. Exhaust Note averages 4.7 out of 5 from 14 ratings, while RevApp averages 2.0 from 1 ratings.

### Do Exhaust Note or RevApp have ads?

Exhaust Note shows ads; RevApp does not.

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

Exhaust Note ships an update every 2 days, and RevApp fortnightly. Most recently, Exhaust Note was updated on November 2, 2026 and RevApp on October 26, 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.*