# LensPro vs BackStageClock

The clearest difference is price: BackStageClock at $2.99 against LensPro's $5.99. LensPro's advantage is iOS requirement (13.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | LensPro | BackStageClock |
| --- | --- | --- |
| Price | $5.99 | **$2.99** |
| Rating | **[4.4 (21 ratings)](https://appshunter.io/ios/app/lenspro/id391291572/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | — |
| Monetization | Paid | — |
| Size | 109 MB | 2 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [piXap](https://appshunter.io/developer/386140014) | [KIZAI](https://appshunter.io/developer/1894401422) |

## What reviewers say

### 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:** Vision Pro support

**In-app purchases:** none


### BackStageClock

[App page](https://appshunter.io/ios/app/backstageclock/id6772682578)

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

**In-app purchases:** none


## Frequently asked questions

### Is LensPro free?

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

### Is BackStageClock free?

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

### Do LensPro or BackStageClock have ads?

Neither LensPro nor BackStageClock shows ads.

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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.*