# Camera Exposure Calculator Pro vs Lux Meter

The clearest difference is price: Lux Meter at Free against Camera Exposure Calculator Pro's $3.99. Lux Meter also leads on update cadence (weekly vs every 54 months). Camera Exposure Calculator Pro's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Lux Meter is free to download; Camera Exposure Calculator Pro costs $3.99 up front. Lux Meter sells 1 one-off in-app purchase. Camera Exposure Calculator Pro asks for nothing beyond the download.

Camera Exposure Calculator Pro ships an update every 54 months, Lux Meter weekly. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Camera Exposure Calculator Pro | Lux Meter |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[4.5 (6 ratings)](https://appshunter.io/ios/app/lux-meter-light-meter/id6790800796/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 54 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 21 MB | 9 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ajay Gorasiya](https://appshunter.io/developer/1455174866) | [Alper Sumer Guc](https://appshunter.io/developer/1896672915) |

## What reviewers say

### Camera Exposure Calculator Pro

[App page](https://appshunter.io/ios/app/camera-exposure-calculator-pro/id1603970223)

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

**In-app purchases:** none


### Lux Meter

[App page](https://appshunter.io/ios/app/lux-meter-light-meter/id6790800796)

This tool transforms your iPhone into a professional light meter, measuring illuminance in lux and foot-candles in real-time. It offers exposure calculations, color temperature estimates, and various presets for different use cases, all while working offline and without ads.

**Highlights:** Real-time lux and foot-candle readout, Exposure Value (EV) calculation, Color temperature (CCT) estimate, Spot or average metering, Use-case presets, CSV export of readings, 100% offline functionality

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lux Meter Premium | $2.99 | one-time |


## Frequently asked questions

### Is Camera Exposure Calculator Pro free?

Camera Exposure Calculator Pro costs $3.99, with no in-app purchases.

### Is Lux Meter free?

Lux Meter is free to download, with in-app purchases available.

### Do Camera Exposure Calculator Pro or Lux Meter have ads?

Lux Meter shows ads; Camera Exposure Calculator Pro does not.

### Which is updated more often, Camera Exposure Calculator Pro or Lux Meter?

Camera Exposure Calculator Pro ships an update every 54 months, and Lux Meter weekly. Most recently, Camera Exposure Calculator Pro was updated on October 30, 2026 and Lux Meter on October 29, 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.*