# ProjectorCalc vs ScreenGlow Mobile

The clearest difference is update cadence: ScreenGlow Mobile at every 10 days against ProjectorCalc's every 49 months. ProjectorCalc's advantage is price ($2.99 vs $4.99) and iOS requirement (9.2 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

ProjectorCalc costs $2.99 and ScreenGlow Mobile $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ProjectorCalc ships an update every 49 months, ScreenGlow Mobile every 10 days. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ProjectorCalc | ScreenGlow Mobile |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| 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 10 days** |
| Monetization | Paid | — |
| Size | 10 MB | 56 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


### ScreenGlow Mobile

[App page](https://appshunter.io/ios/app/screenglow-mobile/id6757760487)

**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 ScreenGlow Mobile free?

ScreenGlow Mobile costs $4.99, with no in-app purchases.

### Do ProjectorCalc or ScreenGlow Mobile have ads?

Neither ProjectorCalc nor ScreenGlow Mobile shows ads.

### Which is updated more often, ProjectorCalc or ScreenGlow Mobile?

ProjectorCalc ships an update every 49 months, and ScreenGlow Mobile every 10 days. Most recently, ProjectorCalc was updated on October 31, 2026 and ScreenGlow Mobile on October 28, 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.*