# CAMMUS vs SIM

The clearest difference is review sentiment: SIM at 43% against CAMMUS's 0%. SIM also leads on rating (4.6 vs 2.1) and ratings volume (445 vs 8). CAMMUS's advantage is in-app purchases (none vs 24) and iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SIM sells 24 one-off in-app purchases. CAMMUS asks for nothing beyond the download.

SIM holds the better App Store score, 4.6 against 2.1. That said, the two scores are not equally well evidenced: SIM has 445 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 0% of CAMMUS's written reviews are positive against 43% of SIM's.

CAMMUS ships an update every 3 weeks, SIM every 2 weeks. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | CAMMUS | SIM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (8 ratings)](https://appshunter.io/ios/app/cammus/id1580325132/reviews) | **[4.6 (445 ratings)](https://appshunter.io/ios/app/sim-dashboard/id1672925903/reviews)** |
| Number of ratings | 8 | **445** |
| Positive reviews | 0.0% of reviews | **42.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 110 MB | 108 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 12+ |
| Developer | [Shenzhen Cammus Electronic Technology Co., Ltd.](https://appshunter.io/developer/1024909287) | [Christian Hausmann](https://appshunter.io/developer/1672925905) |

## What reviewers say

### CAMMUS

[App page](https://appshunter.io/ios/app/cammus/id1580325132)

This app allows users to control and debug a specific computer simulator. It enables Bluetooth connectivity to the device, adjustment of various simulator parameters, and saving of custom modes for future use.

**Highlights:** Control computer simulator, Debug simulator functions, Bluetooth device connection, Adjust simulator parameters, Save custom modes

**Features:** macOS Compatibility

**In-app purchases:** none


### SIM

[App page](https://appshunter.io/ios/app/sim-dashboard/id1672925903)

Transform your smartphone or tablet into a customizable auxiliary display for racing, truck, flight, and farming simulations. Design your own dashboard with a variety of widgets and share your creations with a community of users. Unlock full potential with in-app purchases.

**Highlights:** Freely configurable auxiliary display, Easy dashboard editor, Large number of widgets, Community designs download/share, Virtual button box for PC, Personalized layouts

**In-app purchases (24)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TDU Solar Crown | $0.99 | one-time |
| F1 23 (Upgrade) | $0.99 | one-time |
| F1 24 (Upgrade) | $0.99 | one-time |
| BeamNG.drive | $1.49 | one-time |
| Le Mans Ultimate (PC) | $1.99 | one-time |
| The Bus | $2.99 | one-time |
| Forza Horizon 4 & 5 | $2.99 | one-time |
| Farming Simulator 25 (Upgrade) | $2.99 | one-time |
| F1 2021 (Upgrade) | $2.99 | one-time |
| WRC (EA SPORTS) (PC) | $2.99 | one-time |
| GT Sport | $2.99 | one-time |
| PC Button Box | $3.79 | one-time |
| Forza Motorsport 2023 & 7 | $3.99 | one-time |
| GT7 | $3.99 | one-time |
| F1 25 | $4.49 | one-time |
| MS Flight Simul. 2024 & 2020 | $4.49 | one-time |
| Farming Simulator 22 | $4.49 | one-time |
| Farming Simulator 25 | $4.49 | one-time |
| F1 23 | $4.49 | one-time |
| F1 24 | $4.49 | one-time |
| Assetto Corsa | $4.79 | one-time |
| iRacing | $4.79 | one-time |
| ETS2 & ATS | $5.99 | one-time |
| PRO | $12.99 | one-time |

**What reviewers like**

- 👍 Works well for desired purpose
- 👍 Easy to use and setup
- 💡 Amazing data reading and display
- 👍 Good for sim racing
- 👍 Saves money on hardware

**What reviewers complain about**

- 👎 Free version too limited
- 👎 Paid version issues
- 👎 Crashing on iOS
- 👎 Not working on PS5
- 👎 Broken after updates

**Reported bugs**

- Free version too limited (3 widgets)
- Can't get money back for accidental purchase
- Time slip on drag times not loading
- ACC on PS5 not working
- iOS app not updated for AC Evo

**Requested features**

- Add Assetto Corsa Rally support
- Working PSI gauge for Beamng drive
- Remote dashboard studio for iOS
- More engine info for Beamng
- Add Farming Simulator 25 to console


## Frequently asked questions

### Is CAMMUS free?

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

### Is SIM free?

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

### Which has better reviews, CAMMUS or SIM?

SIM is rated higher. CAMMUS averages 2.1 out of 5 from 8 ratings, while SIM averages 4.6 from 445 ratings.

### Do CAMMUS or SIM have ads?

Neither CAMMUS nor SIM shows ads.

### Which is updated more often, CAMMUS or SIM?

CAMMUS ships an update every 3 weeks, and SIM every 2 weeks. Most recently, CAMMUS was updated on October 15, 2026 and SIM on October 17, 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.*