# ProjectorCalc vs LensPro

The clearest difference is rating: ProjectorCalc at 5.0 against LensPro's 4.4. ProjectorCalc also leads on price ($2.99 vs $5.99) and iOS requirement (9.2 vs 15.0). LensPro's advantage is review sentiment (76% vs 38%) and update cadence (every 12 months vs every 49 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

ProjectorCalc costs $2.99 and LensPro $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ProjectorCalc holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: LensPro has 21 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 38% of ProjectorCalc's written reviews are positive against 76% of LensPro's, so the app with the better star average is not the one people write more warmly about.

ProjectorCalc ships an update every 49 months, LensPro every 12 months. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | ProjectorCalc | LensPro |
| --- | --- | --- |
| Price | **$2.99** | $5.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/projectorcalc/id310342928/reviews)** | [4.4 (21 ratings)](https://appshunter.io/ios/app/lenspro/id391291572/reviews) |
| Number of ratings | 2 | **21** |
| Positive reviews | 37.5% of reviews | **76.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 49 months | **Every 12 months** |
| Monetization | Paid | Paid |
| Size | 10 MB | 113 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) | [piXap](https://appshunter.io/developer/386140014) |

## 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


### LensPro

[App page](https://appshunter.io/ios/app/lenspro/id391291572)

This utility app assists projectionists with lens calculations for various projector brands. It maintains an updated database of lens information accessible via the internet.

**Highlights:** Lens calculations, Supports Barco, Christie, Panasonic, Epson, Benq, Mitsubishi, Optoma, Sony, Online database updates, Ideal for projectionists

**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 LensPro free?

LensPro costs $5.99, with no in-app purchases.

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

ProjectorCalc is rated higher. ProjectorCalc averages 5.0 out of 5 from 2 ratings, while LensPro averages 4.4 from 21 ratings.

### Do ProjectorCalc or LensPro have ads?

Neither ProjectorCalc nor LensPro shows ads.

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

ProjectorCalc ships an update every 49 months, and LensPro every 12 months. Most recently, ProjectorCalc was updated on October 7, 2026 and LensPro on October 5, 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.*