# RevHeadz Engine Sounds vs Flight Deck FMS

The clearest difference is ads: Flight Deck FMS at none against RevHeadz Engine Sounds's shown. Flight Deck FMS also leads on review sentiment (100% vs 69%) and update cadence (every 5 days vs every 3 months). RevHeadz Engine Sounds's advantage is ratings volume (1.4K vs 5) and iOS requirement (12.0 vs 17.5). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. RevHeadz Engine Sounds sells 10 one-off in-app purchases and Flight Deck FMS sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.3 for RevHeadz Engine Sounds against 4.2 for Flight Deck FMS. That said, the two scores are not equally well evidenced: RevHeadz Engine Sounds has 1.4K ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 69% of RevHeadz Engine Sounds's written reviews are positive against 100% of Flight Deck FMS's.

RevHeadz Engine Sounds ships an update every 3 months, Flight Deck FMS every 5 days. Both last shipped on September 23, 2026.

## The numbers

| Metric | RevHeadz Engine Sounds | Flight Deck FMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (1.4K ratings)](https://appshunter.io/ios/app/revheadz-engine-sounds/id793064343/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/flight-deck-fms/id6753941713/reviews) |
| Number of ratings | **1.4K** | 5 |
| Positive reviews | 68.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 201 MB | 142 MB |
| Requires iOS | **12.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [D.S LONG & SOUNDWAVE CONCEPTS PTY. LTD. & C.G WISE](https://appshunter.io/developer/793064346) | [Visuality srl](https://appshunter.io/developer/417208075) |

## What reviewers say

### RevHeadz Engine Sounds

[App page](https://appshunter.io/ios/app/revheadz-engine-sounds/id793064343)

Experience realistic car and motorcycle engine sounds with interactive controls for gears, brakes, and acceleration. Connect to sound systems for an immersive audio experience. Supports OBD2 connectivity for real-time driving simulation.

**Highlights:** Realistic engine sound simulation, Interactive gear, brake, and accelerator controls, OBD2 connectivity for real-time driving, Vast library of car and bike engines, Connect to external sound systems, Detailed mechanical parameter simulation

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Historic Grand Prix Pack | $0.99 | one-time |
| Race Car Pack | $0.99 | one-time |
| Super Car Pack | $0.99 | one-time |
| Street Tuner Pack | $0.99 | one-time |
| Street Bike Pack | $0.99 | one-time |
| Off Road Pack | $0.99 | one-time |
| V8 Thunder Pack | $0.99 | one-time |
| Modern Grand Prix Pack | $0.99 | one-time |
| Import Pack | $0.99 | one-time |
| Classic American Muscle Pack | $0.99 | one-time |

**What reviewers like**

- 🚀 Great game
- 👍 Awesome sounds
- 👍 Realistic engine sounds
- 👍 Fun to use
- 👍 Satisfying experience

**What reviewers complain about**

- 💰 Paid packs required for more content
- 🐛 Connectivity issues with OBD2 adapters
- 🐛 Occasional crashes or bugs
- 🔋 High battery consumption

**Reported bugs**

- Inconsistent RPM/speed detection
- Delayed or unresponsive engine sounds
- Compatibility issues on certain devices
- Startup/shutdown sound not working in OBD2 mode

**Requested features**

- Add more free car sounds
- Include diesel engine sounds
- Implement turbo/supercharger sounds
- Add more JDM and classic car sounds
- Introduce a clutch/manual gearbox feature


### Flight Deck FMS

[App page](https://appshunter.io/ios/app/flight-deck-fms/id6753941713)

This app transforms your iPad or iPhone into a realistic, touch-ready Flight Management System for X-Plane. It offers seamless real-time connection and detailed avionics mirroring, enhancing flight simulation accuracy and immersion.

**Highlights:** Real-time X-Plane connection, Full FMC, MCDU, and INS functionality, Realistic tactile key response, Automatic aircraft detection, Modern and legacy layout options, Optimized for cockpit visuals

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flight Deck FMS Standard | $8.99 | one-time |
| Flight FMS Plus | $17.99 | one-time |


## Frequently asked questions

### Is RevHeadz Engine Sounds free?

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

### Is Flight Deck FMS free?

Flight Deck FMS is free to download, with in-app purchases available.

### Which has better reviews, RevHeadz Engine Sounds or Flight Deck FMS?

RevHeadz Engine Sounds is rated higher. RevHeadz Engine Sounds averages 4.3 out of 5 from 1.4K ratings, while Flight Deck FMS averages 4.2 from 5 ratings.

### Do RevHeadz Engine Sounds or Flight Deck FMS have ads?

RevHeadz Engine Sounds shows ads; Flight Deck FMS does not.

### Which is updated more often, RevHeadz Engine Sounds or Flight Deck FMS?

RevHeadz Engine Sounds ships an update every 3 months, and Flight Deck FMS every 5 days. Most recently, RevHeadz Engine Sounds was updated on September 23, 2026 and Flight Deck FMS on September 23, 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.*