# ProjectorCalc vs GenR8

ProjectorCalc and GenR8 both sit at 5.0 stars, but that hides the real split: 100% of GenR8's written reviews are positive against 38% of ProjectorCalc's. GenR8 also leads on update cadence (weekly vs every 49 months) and ratings volume (9 vs 2). ProjectorCalc's advantage is price ($2.99 vs $19.99) and iOS requirement (9.2 vs 17.0). On rating, ads, in-app purchases and monetization model there is nothing between them.

ProjectorCalc costs $2.99 and GenR8 $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for ProjectorCalc against 4.9 for GenR8. Both are backed by a comparable volume of ratings — 2 and 9 respectively. Written reviews are what separate them: 38% of ProjectorCalc's written reviews are positive against 100% of GenR8's.

ProjectorCalc ships an update every 49 months, GenR8 weekly. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ProjectorCalc | GenR8 |
| --- | --- | --- |
| Price | **$2.99** | $19.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/projectorcalc/id310342928/reviews)** | [4.9 (9 ratings)](https://appshunter.io/ios/app/genr8/id6751822886/reviews) |
| Number of ratings | 2 | **9** |
| Positive reviews | 37.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 49 months | **Weekly** |
| Monetization | Paid | Paid |
| Size | 10 MB | 21 MB |
| Requires iOS | **9.2** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [D!HV Lighting](https://appshunter.io/developer/287079053) | [Christopher Van Hoose](https://appshunter.io/developer/1510007987) |

## 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


### GenR8

[App page](https://appshunter.io/ios/app/genr8/id6751822886)

Generate professional test patterns for display calibration and validation. Supports external displays, audio testing, and HDR signals. Ideal for video engineers, filmmakers, and content creators needing precise visual and audio analysis on the go.

**Highlights:** 28+ professional test patterns, External display support (USB-C, AirPlay), HDR pattern support, Audio test tones and live metering, Precision controls and customizable overlays, Export test patterns (PNG, PDF, JPG, TIFF)

**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 GenR8 free?

GenR8 costs $19.99, with no in-app purchases.

### Which has better reviews, ProjectorCalc or GenR8?

ProjectorCalc is rated higher. ProjectorCalc averages 5.0 out of 5 from 2 ratings, while GenR8 averages 4.9 from 9 ratings.

### Do ProjectorCalc or GenR8 have ads?

Neither ProjectorCalc nor GenR8 shows ads.

### Which is updated more often, ProjectorCalc or GenR8?

ProjectorCalc ships an update every 49 months, and GenR8 weekly. Most recently, ProjectorCalc was updated on October 7, 2026 and GenR8 on October 24, 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.*