# Luxometer vs Luminosys

The clearest difference is ads: Luxometer at none against Luminosys's shown. Luxometer also leads on update cadence (daily vs every 19 months) and monetization model (free vs ad-supported). Luminosys's advantage is rating (4.4 vs 4.0) and review sentiment (75% vs 60%). On price, ratings volume 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.

Luminosys holds the better App Store score, 4.4 against 4.0. Both are backed by a comparable volume of ratings — 8 and 7 respectively. Written reviews point the same way: 60% of Luxometer's written reviews are positive against 75% of Luminosys's.

Luxometer ships an update daily, Luminosys every 19 months. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Luxometer | Luminosys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (8 ratings)](https://appshunter.io/ios/app/luxometer/id1528110029/reviews) | **[4.4 (7 ratings)](https://appshunter.io/ios/app/luminosys-light-meter/id6476405389/reviews)** |
| Number of ratings | **8** | 7 |
| Positive reviews | 60.0% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 19 months |
| Monetization | **Free** | Ad-supported |
| Size | 0 MB | 3 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Arias Software LLC](https://appshunter.io/developer/1458265015) | [Melissa Zwick](https://appshunter.io/developer/1616726350) |

## What reviewers say

### Luxometer

[App page](https://appshunter.io/ios/app/luxometer/id1528110029)

Measure ambient light intensity in Lumens and color temperature in Kelvin using your phone's built-in sensors. Point your device at a light source and see real-time readings, enhanced with augmented reality visualizations.

**Highlights:** Ambient light intensity measurement (Lumens), Ambient color temperature measurement (Kelvin), Real-time data readouts, Augmented reality visualizations, Uses device's built-in hardware

**Features:** macOS Compatibility

**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 Luxometer free?

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

### Is Luminosys free?

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

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

Luminosys is rated higher. Luxometer averages 4.0 out of 5 from 8 ratings, while Luminosys averages 4.4 from 7 ratings.

### Do Luxometer or Luminosys have ads?

Luminosys shows ads; Luxometer does not.

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

Luxometer ships an update daily, and Luminosys every 19 months. Most recently, Luxometer was updated on October 3, 2026 and Luminosys on October 7, 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.*