# Luxometer vs Libre Light Sensor

The clearest difference is rating: Libre Light Sensor at 4.8 against Luxometer's 4.0. Libre Light Sensor also leads on review sentiment (82% vs 60%) and ratings volume (113 vs 8). Luxometer's advantage is update cadence (daily vs every 5 weeks) and device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Libre Light Sensor holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Libre Light Sensor has 113 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 60% of Luxometer's written reviews are positive against 82% of Libre Light Sensor's.

Luxometer ships an update daily, Libre Light Sensor every 5 weeks. The most recent releases landed on September 8, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Luxometer | Libre Light Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (8 ratings)](https://appshunter.io/ios/app/luxometer/id1528110029/reviews) | **[4.8 (113 ratings)](https://appshunter.io/ios/app/libre-light-sensor/id1644439968/reviews)** |
| Number of ratings | 8 | **113** |
| Positive reviews | 60.0% of reviews | **82.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 0 MB | 1 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) | [John Harrington](https://appshunter.io/developer/1603002572) |

## 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


### Libre Light Sensor

[App page](https://appshunter.io/ios/app/libre-light-sensor/id1644439968)

Measure ambient light levels in Lux using your iPhone's camera. Optimize sleep quality by understanding light exposure throughout the day and night.

**Highlights:** Measure light in Lux, Utilizes iPhone camera, Optimize sleep quality, Track light exposure

**In-app purchases:** none


## Frequently asked questions

### Is Luxometer free?

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

### Is Libre Light Sensor free?

Libre Light Sensor is free to download, with no in-app purchases.

### Which has better reviews, Luxometer or Libre Light Sensor?

Libre Light Sensor is rated higher. Luxometer averages 4.0 out of 5 from 8 ratings, while Libre Light Sensor averages 4.8 from 113 ratings.

### Do Luxometer or Libre Light Sensor have ads?

Neither Luxometer nor Libre Light Sensor shows ads.

### Which is updated more often, Luxometer or Libre Light Sensor?

Luxometer ships an update daily, and Libre Light Sensor every 5 weeks. Most recently, Luxometer was updated on September 8, 2026 and Libre Light Sensor on September 28, 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.*