# LEDVANCE LUX vs Luminosys

The clearest difference is ads: LEDVANCE LUX at none against Luminosys's shown. LEDVANCE LUX also leads on update cadence (every 5 months vs every 19 months) and review sentiment (93% vs 75%). On price, in-app purchases and device support there is nothing between them.

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

LEDVANCE LUX ships an update every 5 months, Luminosys every 19 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | LEDVANCE LUX | Luminosys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (10 ratings)](https://appshunter.io/ios/app/luminosys-light-meter/id6476405389/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | **92.9% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 months** | Every 19 months |
| Monetization | **Free** | Ad-supported |
| Size | 16 MB | 3 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [LEDVANCE GmbH](https://appshunter.io/developer/1134909799) | [Melissa Zwick](https://appshunter.io/developer/1616726350) |

## What reviewers say

### LEDVANCE LUX

[App page](https://appshunter.io/ios/app/ledvance-lux-o-meter/id1542761285)

Measure light intensity in LUX to ensure optimal lighting for concentration at your desk or home office. This app helps you create a productive and comfortable workspace by recommending illuminants.

**Highlights:** Measure light brightness in LUX, Real-time measurement, Workplace optimization recommendations, Attractive design, Ease of use

**Features:** Vision Pro support

**In-app purchases:** none


### 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 LEDVANCE LUX free?

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

### Is Luminosys free?

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

### Do LEDVANCE LUX or Luminosys have ads?

Luminosys shows ads; LEDVANCE LUX does not.

### Which is updated more often, LEDVANCE LUX or Luminosys?

LEDVANCE LUX ships an update every 5 months, and Luminosys every 19 months. Most recently, LEDVANCE LUX was updated on November 3, 2026 and Luminosys on November 4, 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.*