# Engine Sim vs Exhaust Note

The clearest difference is in-app purchases: Exhaust Note at none against Engine Sim's 10. Exhaust Note also leads on rating (5.0 vs 4.7) and update cadence (every 3 days vs every 9 days). Engine Sim's advantage is ratings volume (30 vs 4). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Engine Sim sells 10 one-off in-app purchases. Exhaust Note asks for nothing beyond the download.

Exhaust Note holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Engine Sim has 30 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 91% of Engine Sim's written reviews are positive against 100% of Exhaust Note's.

Engine Sim ships an update every 9 days, Exhaust Note every 3 days. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Engine Sim | Exhaust Note |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (30 ratings)](https://appshunter.io/ios/app/engine-sim-sound-simulator/id6787443044/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/exhaust-note-engine-sound-sim/id6797558385/reviews)** |
| Number of ratings | **30** | 4 |
| Positive reviews | 90.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 26 MB | 9 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Sena Takasawa](https://appshunter.io/developer/1887478690) | [seihee han](https://appshunter.io/developer/629944907) |

## What reviewers say

### Engine Sim

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

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 |


### Exhaust Note

[App page](https://appshunter.io/ios/app/exhaust-note-engine-sound-sim/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:** none


## Frequently asked questions

### Is Engine Sim free?

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

### Is Exhaust Note free?

Exhaust Note is free to download, with no in-app purchases.

### Which has better reviews, Engine Sim or Exhaust Note?

Exhaust Note is rated higher. Engine Sim averages 4.7 out of 5 from 30 ratings, while Exhaust Note averages 5.0 from 4 ratings.

### Do Engine Sim or Exhaust Note have ads?

Both Engine Sim and Exhaust Note show ads.

### Which is updated more often, Engine Sim or Exhaust Note?

Engine Sim ships an update every 9 days, and Exhaust Note every 3 days. Most recently, Engine Sim was updated on September 24, 2026 and Exhaust Note on September 21, 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.*