# Libre Light Sensor vs Luxmeter

The clearest difference is review sentiment: Libre Light Sensor at 82% against Luxmeter's 8%. Libre Light Sensor also leads on in-app purchases (none vs 7) and ads (none vs shown). Luxmeter's advantage is update cadence (every 5 days vs every 5 weeks). On price, ratings volume, device support and iOS requirement there is nothing between them.

Both are free to download. Luxmeter sells 7 in-app purchases, starting at $5.99 per 7 days. Libre Light Sensor asks for nothing beyond the download.

Libre Light Sensor holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 113 and 248 respectively. Written reviews point the same way: 82% of Libre Light Sensor's written reviews are positive against 8% of Luxmeter's.

Libre Light Sensor ships an update every 5 weeks, Luxmeter every 5 days. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Libre Light Sensor | Luxmeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (113 ratings)](https://appshunter.io/ios/app/libre-light-sensor/id1644439968/reviews)** | [4.4 (248 ratings)](https://appshunter.io/ios/app/luxmeter-lux-light-meter/id6746211051/reviews) |
| Number of ratings | 113 | **248** |
| Positive reviews | **82.4% of reviews** | 7.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 23 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [John Harrington](https://appshunter.io/developer/1603002572) | [STOMBERG s.r.o](https://appshunter.io/developer/1703467445) |

## What reviewers say

### 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


### Luxmeter

[App page](https://appshunter.io/ios/app/luxmeter-lux-light-meter/id6746211051)

This app measures light intensity in lux and provides real-time exposure suggestions for photography. It offers customizable settings for shutter speed, aperture, and ISO, with options for both front and back cameras. It's designed for personal use to optimize lighting and capture better photos.

**Highlights:** Light intensity measurement (lux, foot-candles), Real-time color temperature readings, Exposure suggestions, Manual shutter speed, aperture, ISO control, Front and back camera support, Customizable settings

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Luxmeter Pro | $5.99 | per 7 days |
| Luxmeter Pro | $5.99 | per 7 days |
| Luxmeter Pro | $8.99 | per 7 days |
| Luxmeter Pro | $9.99 | per 7 days |
| Luxmeter Pro | $9.99 | per 7 days |
| Luxmeter Pro | $9.99 | per 7 days |
| Luxmeter Pro | $29.99 | per year |


## Frequently asked questions

### Is Libre Light Sensor free?

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

### Is Luxmeter free?

Luxmeter is free to download, with in-app purchases available.

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

Libre Light Sensor is rated higher. Libre Light Sensor averages 4.8 out of 5 from 113 ratings, while Luxmeter averages 4.4 from 248 ratings.

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

Luxmeter shows ads; Libre Light Sensor does not.

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

Libre Light Sensor ships an update every 5 weeks, and Luxmeter every 5 days. Most recently, Libre Light Sensor was updated on October 15, 2026 and Luxmeter on October 16, 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.*