# ProjectorCalc vs The Set Lighting App

The clearest difference is price: ProjectorCalc at $2.99 against The Set Lighting App's $34.99. ProjectorCalc also leads on iOS requirement (9.2 vs 15.0). The Set Lighting App's advantage is update cadence (every 8 days vs every 49 months). On ads, in-app purchases and device support there is nothing between them.

ProjectorCalc costs $2.99 and The Set Lighting App $34.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ProjectorCalc ships an update every 49 months, The Set Lighting App every 8 days. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | ProjectorCalc | The Set Lighting App |
| --- | --- | --- |
| Price | **$2.99** | $34.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/projectorcalc/id310342928/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 49 months | **Every 8 days** |
| Monetization | Paid | — |
| Size | 10 MB | 102 MB |
| Requires iOS | **9.2** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [D!HV Lighting](https://appshunter.io/developer/287079053) | [Canary Yellow Applications, LLC](https://appshunter.io/developer/1842461747) |

## What reviewers say

### ProjectorCalc

[App page](https://appshunter.io/ios/app/projectorcalc/id310342928)

This utility app helps lighting technicians and projectionists calculate projected image dimensions. It determines image width, height, diagonal length, brightness, area, and pixel density based on projector and location details. It also estimates keystone distortion.

**Highlights:** Calculate image width, height, and diagonal length, Determine brightness in Nits, Calculate total projected area, Compute pixels per inch, Estimate keystone distortion

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

**In-app purchases:** none


### The Set Lighting App

[App page](https://appshunter.io/ios/app/the-set-lighting-app/id6753724639)

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

**In-app purchases:** none


## Frequently asked questions

### Is ProjectorCalc free?

ProjectorCalc costs $2.99, with no in-app purchases.

### Is The Set Lighting App free?

The Set Lighting App costs $34.99, with no in-app purchases.

### Do ProjectorCalc or The Set Lighting App have ads?

Neither ProjectorCalc nor The Set Lighting App shows ads.

### Which is updated more often, ProjectorCalc or The Set Lighting App?

ProjectorCalc ships an update every 49 months, and The Set Lighting App every 8 days. Most recently, ProjectorCalc was updated on October 7, 2026 and The Set Lighting App on October 13, 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.*