# Head Tracker vs SIM

The clearest difference is rating: SIM at 4.6 against Head Tracker's 4.1. SIM also leads on ratings volume (445 vs 62). Head Tracker's advantage is review sentiment (70% vs 43%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Head Tracker sells 1 one-off in-app purchase and SIM sells 24 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

SIM holds the better App Store score, 4.6 against 4.1. That said, the two scores are not equally well evidenced: SIM has 445 ratings behind it against 62, so its average is the more settled of the two. Written reviews complicate that: 70% of Head Tracker's written reviews are positive against 43% of SIM's, so the app with the better star average is not the one people write more warmly about.

Head Tracker ships an update fortnightly, SIM every 2 weeks. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Head Tracker | SIM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (62 ratings)](https://appshunter.io/ios/app/head-tracker/id1527710071/reviews) | **[4.6 (445 ratings)](https://appshunter.io/ios/app/sim-dashboard/id1672925903/reviews)** |
| Number of ratings | 62 | **445** |
| Positive reviews | **70.5% of reviews** | 42.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 2 MB | 108 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [John Yu](https://appshunter.io/developer/1527414279) | [Christian Hausmann](https://appshunter.io/developer/1672925905) |

## What reviewers say

### Head Tracker

[App page](https://appshunter.io/ios/app/head-tracker/id1527710071)

This app provides responsive 6DOF head tracking for PC games using your iPhone's camera. Enjoy immersive flight and driving simulations without expensive hardware or uncomfortable headsets.

**Highlights:** 6DOF head tracking, Wireless Wi-Fi connection, No external hardware needed, Accurate and responsive tracking, Easy setup, Compatible with opentrack

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $1.99 | one-time |

**What reviewers like**

- 👍 Great value for price
- 🚀 Smooth and responsive tracking
- 🎮 Enhances gaming immersion
- ✅ Easy setup and use
- 💡 Good alternative to expensive hardware

**What reviewers complain about**

- 🐛 Shaky tracking
- ❌ Doesn't work with older iPhones
- ⚠️ Inconsistent performance in low light
- 🔄 Purchase not restoring
- 🪲 Connection drops

**Reported bugs**

- Pitch flips upside down when yawing
- Purchase not restoring after reinstall
- Camera always in portrait mode
- Image gets dark after a few seconds
- Tracking is shaky and buggy

**Requested features**

- Option to turn off screen when tracking
- Always visible rotation button for landscape camera
- Ability to brighten screen for better tracking
- Use IR camera for low-light conditions
- Option to make screen black to reduce battery/screen burn


### 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 Head Tracker free?

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

### Is SIM free?

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

### Which has better reviews, Head Tracker or SIM?

SIM is rated higher. Head Tracker averages 4.1 out of 5 from 62 ratings, while SIM averages 4.6 from 445 ratings.

### Do Head Tracker or SIM have ads?

Neither Head Tracker nor SIM shows ads.

### Which is updated more often, Head Tracker or SIM?

Head Tracker ships an update fortnightly, and SIM every 2 weeks. Most recently, Head Tracker was updated on October 7, 2026 and SIM on October 12, 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.*