# myHarkness Modeller vs Screen Mirroring Smart Screen

The clearest difference is review sentiment: myHarkness Modeller at 100% against Screen Mirroring Smart Screen's 15%. myHarkness Modeller also leads on in-app purchases (none vs 14) and ads (none vs shown). Screen Mirroring Smart Screen's advantage is rating (4.7 vs 3.0) and update cadence (every 11 days vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Screen Mirroring Smart Screen sells 14 in-app purchases, starting at $0.99 per 7 days. myHarkness Modeller asks for nothing beyond the download.

Screen Mirroring Smart Screen holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Screen Mirroring Smart Screen has 654 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 100% of myHarkness Modeller's written reviews are positive against 15% of Screen Mirroring Smart Screen's, so the app with the better star average is not the one people write more warmly about.

myHarkness Modeller ships an update every 3 months, Screen Mirroring Smart Screen every 11 days. The most recent releases landed on October 17, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | myHarkness Modeller | Screen Mirroring Smart Screen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/myharkness-modeller/id628424947/reviews) | **[4.7 (654 ratings)](https://appshunter.io/ios/app/screen-mirroring-smart-screen/id6470219556/reviews)** |
| Number of ratings | 2 | **654** |
| Positive reviews | **100.0% of reviews** | 15.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 11 days** |
| Monetization | **Free** | Subscription |
| Size | 221 MB | 67 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Harkness Screens Ltd](https://appshunter.io/developer/987523118) | [Gowalk Inc.](https://appshunter.io/developer/1649775469) |

## What reviewers say

### myHarkness Modeller

[App page](https://appshunter.io/ios/app/myharkness-modeller/id628424947)

This 3D simulation tool helps architects and engineers visualize and optimize digital cinema setups in real-time. It aids in making informed decisions about screen, projector, and lamp choices to meet industry brightness standards.

**Highlights:** 3D simulation tool, Real-time visualization, Optimize digital cinema scenarios, Screen, projector, and lamp selection, Industry standard brightness compliance, Informed decision making

**Features:** macOS Compatibility

**In-app purchases:** none


### Screen Mirroring Smart Screen

[App page](https://appshunter.io/ios/app/screen-mirroring-smart-screen/id6470219556)

Mirror your iPhone or iPad screen to your TV for presentations or entertainment. Stream photos, videos, and web content with minimal delay. Offers a user-friendly experience for seamless casting.

**Highlights:** Mirror iPhone/iPad screen to TV, Stream photos and videos, Cast web videos, Low latency mirroring, User-friendly interface

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $0.99 | per 7 days |
| Weekly Premium | $1.99 | per 7 days |
| Subscription $3.99 Weekly | $3.99 | per 7 days |
| Premium Subscription | $3.99 | per 7 days |
| Subscription $4.99 Monthly | $4.99 | per month |
| Weekly Premium | $4.99 | per 7 days |
| Weekly Premium | $5.99 | per 7 days |
| Weekly Premium | $6.99 | per 7 days |
| Subscription $7.99 Weekly | $7.99 | per 7 days |
| Premium Subscription | $9.99 | per 7 days |
| Yearly subscription | $29.99 | per year |
| Subscription $39.99 Yearly | $39.99 | per year |
| Premium Subscription | $49.99 | per year |
| Yearly subscription | $59.99 | per year |

**What reviewers like**

- 🆓 Free trial option available
- 🔄 On-time cancellation feature
- 👩‍💻 Potential for customer support

**What reviewers complain about**

- 💸 Charges despite cancellation
- 🚫 False advertising of free trial
- 📉 App functionality issues and crashes


## Frequently asked questions

### Is myHarkness Modeller free?

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

### Is Screen Mirroring Smart Screen free?

Screen Mirroring Smart Screen is free to download, with in-app purchases available.

### Which has better reviews, myHarkness Modeller or Screen Mirroring Smart Screen?

Screen Mirroring Smart Screen is rated higher. myHarkness Modeller averages 3.0 out of 5 from 2 ratings, while Screen Mirroring Smart Screen averages 4.7 from 654 ratings.

### Do myHarkness Modeller or Screen Mirroring Smart Screen have ads?

Screen Mirroring Smart Screen shows ads; myHarkness Modeller does not.

### Which is updated more often, myHarkness Modeller or Screen Mirroring Smart Screen?

myHarkness Modeller ships an update every 3 months, and Screen Mirroring Smart Screen every 11 days. Most recently, myHarkness Modeller was updated on October 17, 2026 and Screen Mirroring Smart Screen on October 22, 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.*