# Light Meter・Lux Meter vs Lux Meter

The clearest difference is review sentiment: Lux Meter at 50% against Light Meter・Lux Meter's 0%. Lux Meter also leads on update cadence (every 10 days vs monthly). Light Meter・Lux Meter's advantage is rating (5.0 vs 4.5) and device support (3 vs 1). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Light Meter・Lux Meter sells 2 in-app purchases, starting at $7.99 per 7 days and Lux Meter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Light Meter・Lux Meter holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 6 respectively. Written reviews complicate that: 0% of Light Meter・Lux Meter's written reviews are positive against 50% of Lux Meter's, so the app with the better star average is not the one people write more warmly about.

Light Meter・Lux Meter ships an update monthly, Lux Meter every 10 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Light Meter・Lux Meter | Lux Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/light-meterlux-meter/id6759604310/reviews)** | [4.5 (6 ratings)](https://appshunter.io/ios/app/lux-meter-light-meter/id6790800796/reviews) |
| Number of ratings | 4 | **6** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 113 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ZeroPlay Ltd.](https://appshunter.io/developer/1500119722) | [Alper Sumer Guc](https://appshunter.io/developer/1896672915) |

## What reviewers say

### Light Meter・Lux Meter

[App page](https://appshunter.io/ios/app/light-meterlux-meter/id6759604310)

This utility app transforms your smartphone into a professional light measurement tool, offering precise real-time readings in lux, foot-candle, and EV. It helps users meet lighting standards for various environments and optimize conditions for plant growth, with features for tracking changes over time.

**Highlights:** Real-time lux, foot-candle, and EV readings, Visual brightness indicator, Check lighting standards for spaces, Calculate DLI and PPFD for plants, Continuous recording and trend charts, Save and compare measurements

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $7.99 | per 7 days |
| Monthly | $19.99 | per month |


### 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, Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is Light Meter・Lux Meter free?

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

### Is Lux Meter free?

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

### Which has better reviews, Light Meter・Lux Meter or Lux Meter?

Light Meter・Lux Meter is rated higher. Light Meter・Lux Meter averages 5.0 out of 5 from 4 ratings, while Lux Meter averages 4.5 from 6 ratings.

### Do Light Meter・Lux Meter or Lux Meter have ads?

Both Light Meter・Lux Meter and Lux Meter show ads.

### Which is updated more often, Light Meter・Lux Meter or Lux Meter?

Light Meter・Lux Meter ships an update monthly, and Lux Meter every 10 days. Most recently, Light Meter・Lux Meter was updated on October 24, 2026 and Lux Meter on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*