Comparison

Libre Light Sensor vs Lux Light Meter & Photometer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Libre Light Sensor

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
Read full description

Measure light levels in any environment. Libre Light Sensor leverages your iPhone's camera to calculate luminosity as measured in Lux. This allows you to determine how much light exposure your eyes are receiving when you wake up, during the day, and before bed in order to optimize your sleep quality.

About

Lux Light Meter & Photometer

Measure light intensity and color temperature for photography, plant care, and workspace optimization. Offers real-time readings, shooting recommendations, and manual control for precise lighting adjustments.

Highlights
  • Real-time color temperature readings
  • Lux and Foot Candle measurements
  • Average and Max light values
  • Shooting recommendations for photographers
  • Manual control of camera settings
Features
Read full description

Light Meter is a versatile and precise solution for measuring light in various environments. Whether you're a photographer capturing perfect shots, a plant enthusiast ensuring ideal lighting conditions, or simply someone optimizing workspace illumination, this app offers all the features you need. Key Features: • Real-Time Color Temperature: Get accurate color temperature readings to capture the right mood and ambiance for your photos. • Lux & Foot Candle Measurements: Measure light intensity using your preferred units, ensuring precision for any industry or setting. • Average & Max Light Values: Monitor fluctuations in light levels with detailed average and peak readings. • Shooting Recommendations for Photographers: Receive real-time suggestions for shutter speed, aperture, and ISO based on current lighting. • Manual Control: Easily adjust and fix individual settings like shutter speed, aperture, and ISO for complete customization. Light Meter goes beyond photography — it's a must-have tool for plant care, workspace optimization, and any situation where light makes a difference. Privacy policy: https://it-incubator.eu/en/privacy-policy ​Terms of use: https://it-incubator.eu/en/terms-of-use

Screenshots

Libre Light Sensor4 screens
Lux Light Meter & Photometer3 screens

Verdict

The call

The clearest difference is in-app purchases: Libre Light Sensor at none against Lux Light Meter & Photometer's 6. Libre Light Sensor also leads on ads (none vs shown). On price, rating, review sentiment and ratings volume there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Lux Light Meter & Photometer sells 6 in-app purchases, starting at $2.99 per 7 days. Libre Light Sensor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Libre Light Sensor against 4.8 for Lux Light Meter & Photometer. Both are backed by a comparable volume of ratings — 113 and 196 respectively. Written reviews are what separate them: 82% of Libre Light Sensor's written reviews are positive against 85% of Lux Light Meter & Photometer's.

UpkeepUpdate frequency

Libre Light Sensor ships an update every 5 weeks, Lux Light Meter & Photometer monthly. Both last shipped on October 19, 2026.

Scorecard3 real differences · 7 level
Libre Light Sensor versus Lux Light Meter & Photometer: the parameters behind the verdict, then further details
ParameterLibre Light SensorLux Light Meter & Photometer
PriceFreeFree
Rating4.8 (113 ratings) — better4.8 (196 ratings)
Positive reviews82.4% of reviews85.0% of reviews — better
Number of ratings113196 — better
Update frequencyEvery 5 weeksMonthly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size1 MB54 MB
Age rating4+4+
DeveloperJohn HarringtonITincubator UAB

Customer experience

Libre Light Sensor

All ratings113 ratings
Positive94.7%
Neutral2.7%
Negative2.7%
Written reviews17 reviews
Positive82.4%
Neutral0.0%
Negative17.6%

Lux Light Meter & Photometer

All ratings196 ratings
Positive98.0%
Neutral0.5%
Negative1.5%
Written reviews20 reviews
Positive85.0%
Neutral0.0%
Negative15.0%

In-app purchases

None

Libre Light Sensor

No in-app purchases

6 purchases

Lux Light Meter & Photometer

Subscriptions6
  • Light Meter App$2.997 Days
  • Light Meter App3 Days trial$2.997 Days
  • Light Meter App3 Days trial$5.991 Month
Show 3 more
  • Light Meter App$5.991 Month
  • Light Meter App$14.991 Year
  • Light Meter App3 Days trial$14.991 Year

Questions

Is Libre Light Sensor free?
Libre Light Sensor is free to download, with no in-app purchases.
Is Lux Light Meter & Photometer free?
Lux Light Meter & Photometer is free to download, with in-app purchases available.
Which has better reviews, Libre Light Sensor or Lux Light Meter & Photometer?
Libre Light Sensor is rated higher. Libre Light Sensor averages 4.8 out of 5 from 113 ratings, while Lux Light Meter & Photometer averages 4.8 from 196 ratings.
Do Libre Light Sensor or Lux Light Meter & Photometer have ads?
Lux Light Meter & Photometer shows ads; Libre Light Sensor does not.
Which is updated more often, Libre Light Sensor or Lux Light Meter & Photometer?
Libre Light Sensor ships an update every 5 weeks, and Lux Light Meter & Photometer monthly. Most recently, Libre Light Sensor was updated on October 19, 2026 and Lux Light Meter & Photometer on October 19, 2026.

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