# Lux Light Meter for Mobile vs Luminosys

Lux Light Meter for Mobile and Luminosys both sit at 4.5 stars, but that hides the real split: 75% of Luminosys's written reviews are positive against 17% of Lux Light Meter for Mobile's. Luminosys also leads on in-app purchases (none vs 7). Lux Light Meter for Mobile's advantage is update cadence (fortnightly vs every 19 months) and ratings volume (236 vs 10). On price, rating and ads there is nothing between them.

Both are free to download. Lux Light Meter for Mobile sells 7 in-app purchases, starting at $2.99 per 7 days. Luminosys asks for nothing beyond the download.

Lux Light Meter for Mobile holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Lux Light Meter for Mobile has 236 ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 17% of Lux Light Meter for Mobile's written reviews are positive against 75% of Luminosys's, so the app with the better star average is not the one people write more warmly about.

Lux Light Meter for Mobile ships an update fortnightly, Luminosys every 19 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Lux Light Meter for Mobile | Luminosys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (236 ratings)](https://appshunter.io/ios/app/lux-light-meter-for-mobile/id1638732220/reviews)** | [4.3 (10 ratings)](https://appshunter.io/ios/app/luminosys-light-meter/id6476405389/reviews) |
| Number of ratings | **236** | 10 |
| Positive reviews | 17.3% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 19 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 50 MB | 3 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [WeBrain](https://appshunter.io/developer/1578514377) | [Melissa Zwick](https://appshunter.io/developer/1616726350) |

## What reviewers say

### Lux Light Meter for Mobile

[App page](https://appshunter.io/ios/app/lux-light-meter-for-mobile/id1638732220)

This app provides accurate and easy-to-use light measurements in lux and foot candles. It's ideal for photographers, plant owners, and anyone needing to assess ambient light levels in various spaces. Features include real-time color temperature measurement and calculation of the daily light integral.

**Highlights:** Real-time color temperature measurement, Lux and foot candle measurements, Daily light integral (DLI) calculation, Average and Max values, Optimal shooting value selection, Adjustable shooting values (shutter speed, aperture, ISO)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lux Light Meter Pro | $2.99 | per 7 days |
| Light Meter 1 Week | $2.99 | per 7 days |
| Lux Light Meter | $5.99 | per month |
| Light Meter | $5.99 | per month |
| Lux Meter | $7.99 | per year |
| Light Meter Pro | $14.99 | per year |
| Light Meter for Mobile | $14.99 | per year |


### Luminosys

[App page](https://appshunter.io/ios/app/luminosys-light-meter/id6476405389)

Accurately measure ambient light levels in Lux or Foot Candles using your phone's camera. This tool is ideal for photography, comparing light sources, or indoor gardening. It's designed for ease of use and provides precise readings.

**Highlights:** Measures light in Lux, Measures light in Foot Candles (FC), Uses phone camera for accuracy, Easy to use interface, Suitable for photography, Useful for indoor gardening

**In-app purchases:** none


## Frequently asked questions

### Is Lux Light Meter for Mobile free?

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

### Is Luminosys free?

Luminosys is free to download, with no in-app purchases.

### Which has better reviews, Lux Light Meter for Mobile or Luminosys?

Lux Light Meter for Mobile is rated higher. Lux Light Meter for Mobile averages 4.5 out of 5 from 236 ratings, while Luminosys averages 4.3 from 10 ratings.

### Do Lux Light Meter for Mobile or Luminosys have ads?

Both Lux Light Meter for Mobile and Luminosys show ads.

### Which is updated more often, Lux Light Meter for Mobile or Luminosys?

Lux Light Meter for Mobile ships an update fortnightly, and Luminosys every 19 months. Most recently, Lux Light Meter for Mobile was updated on November 3, 2026 and Luminosys on October 30, 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.*