# Luminosys vs LuxMeasure

The clearest difference is rating: LuxMeasure at 5.0 against Luminosys's 4.3. LuxMeasure also leads on ads (none vs shown) and update cadence (every 6 months vs every 19 months). Luminosys's advantage is ratings volume (10 vs 2). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

LuxMeasure holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Luminosys has 10 ratings behind it against 2, so its average is the more settled of the two.

Luminosys ships an update every 19 months, LuxMeasure every 6 months. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Luminosys | LuxMeasure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (10 ratings)](https://appshunter.io/ios/app/luminosys-light-meter/id6476405389/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/luxmeasure-light-meter/id6761436100/reviews)** |
| Number of ratings | **10** | 2 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 19 months | **Every 6 months** |
| Monetization | Ad-supported | **Free** |
| Size | 3 MB | 16 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Melissa Zwick](https://appshunter.io/developer/1616726350) | [Blayzelab, MB](https://appshunter.io/developer/1889610041) |

## What reviewers say

### 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


### LuxMeasure

[App page](https://appshunter.io/ios/app/luxmeasure-light-meter/id6761436100)

Instantly measure light intensity using your iPhone camera. Get accurate, real-time illuminance readings with no ads, tracking, or account required. Features include session statistics, live charts, and offline functionality.

**Highlights:** Real-time lux measurement, Foot-candle conversion, Front and back camera support, Session statistics, Live sparkline chart, Hold/lock readings, Save measurements with timestamps

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

**In-app purchases:** none


## Frequently asked questions

### Is Luminosys free?

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

### Is LuxMeasure free?

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

### Which has better reviews, Luminosys or LuxMeasure?

LuxMeasure is rated higher. Luminosys averages 4.3 out of 5 from 10 ratings, while LuxMeasure averages 5.0 from 2 ratings.

### Do Luminosys or LuxMeasure have ads?

Luminosys shows ads; LuxMeasure does not.

### Which is updated more often, Luminosys or LuxMeasure?

Luminosys ships an update every 19 months, and LuxMeasure every 6 months. Most recently, Luminosys was updated on November 4, 2026 and LuxMeasure on October 31, 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.*