# ShowTool LD vs ROE Calculator

The clearest difference is price: ROE Calculator at Free against ShowTool LD's $4.99. ROE Calculator also leads on review sentiment (100% vs 70%) and update cadence (every 6 weeks vs every 5 months). ShowTool LD's advantage is rating (4.7 vs 4.0) and ratings volume (6 vs 1). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

ROE Calculator is free to download; ShowTool LD costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ShowTool LD holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: ShowTool LD has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 70% of ShowTool LD's written reviews are positive against 100% of ROE Calculator's, so the app with the better star average is not the one people write more warmly about.

ShowTool LD ships an update every 5 months, ROE Calculator every 6 weeks. The most recent releases landed on September 14, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | ShowTool LD | ROE Calculator |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.7 (6 ratings)](https://appshunter.io/ios/app/showtool-ld/id319523749/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/roe-calculator/id6443583117/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | 70.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 29 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Murfin](https://appshunter.io/developer/319523752) | [ROE Visual Co., Ltd](https://appshunter.io/developer/966467215) |

## What reviewers say

### ShowTool LD

[App page](https://appshunter.io/ios/app/showtool-ld/id319523749)

This app provides essential tools for lighting design and electrical calculations in theatre and film. It helps with beam angles, gel cutting, DMX addressing, power consumption, and network subnetting. Data syncs across devices via iCloud.

**Highlights:** Beam angle and throw calculations, Gel cut and wastage estimation, DMX universe/address translation, Power consumption calculations, Network subnetting tools, iCloud data synchronization

**Features:** Vision Pro support

**In-app purchases:** none


### ROE Calculator

[App page](https://appshunter.io/ios/app/roe-calculator/id6443583117)

This application provides essential technical calculations for LED screens, including ballast, pixel, and power requirement analysis. It's designed to be the ultimate tool for LED technicians during on-site work and production preparation.

**Highlights:** Ballast calculation, Pixel and resolution calculation, Power requirement analysis, Technical calculations for LED screens, On-site and preparation tools

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ShowTool LD free?

ShowTool LD costs $4.99, with no in-app purchases.

### Is ROE Calculator free?

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

### Which has better reviews, ShowTool LD or ROE Calculator?

ShowTool LD is rated higher. ShowTool LD averages 4.7 out of 5 from 6 ratings, while ROE Calculator averages 4.0 from 1 ratings.

### Do ShowTool LD or ROE Calculator have ads?

Neither ShowTool LD nor ROE Calculator shows ads.

### Which is updated more often, ShowTool LD or ROE Calculator?

ShowTool LD ships an update every 5 months, and ROE Calculator every 6 weeks. Most recently, ShowTool LD was updated on September 14, 2026 and ROE Calculator on June 1, 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.*