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Best Libre Light Sensor Apps

250+ iOS apps curated and reviewed

3.7 avg rating
16 free apps
Updated September 2026

The best libre light sensor apps on iPhone average 3.7★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.

Compare top Libre Light Sensor Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Libre Light SensorLibre Light SensorFree4.8★ (113)NoNoSep 2026
2Light Meter LM-3000Light Meter LM-3000Free4.5★ (2.6K)NoYesSep 2026
3LSI SensorLSI SensorFree1.5★ (4)NoNoMay 2026
4Wearifi Light Monitor USWearifi Light Monitor USFree——NoJul 2026
5Light Meter.Light Meter.Free—NoYesMay 2026
6SORA Sensor ConfiguratorSORA Sensor ConfiguratorFree—NoNoMay 2026
7Sensor MoJoSensor MoJoFree—NoNoMay 2026
8Prism - Every Sensor. One App.Prism - Every Sensor. One App.Free—NoYesJul 2026

Top Picks for Libre Light Sensor

Light Meter LM-3000#2

Light Meter LM-3000 by Lightray Innovation GmbH

Simple & accurate measurement!
Strong Contender
🔧 Utilities
4.5😐(2.6K ratings)
FreeIn-App Purchases
Light Meter LM-3000 screenshot 1
Light Meter LM-3000 screenshot 2
Light Meter LM-3000 screenshot 3
Light Meter LM-3000 screenshot 4

Transform your smartphone into a professional light meter. Measure illuminance and color temperature with scientifically validated accuracy, trusted by professionals. Requires a simple diffuser for precise readings.

What We Love

  • 👍 Great app
  • 👍 Accurate measurements
  • 👍 Easy to use
  • 👍 Helpful customer service
  • 👍 Useful for science/research

Room to Improve

  • 🐛 Requires diffuser for accurate readings
  • 💰 Expensive for a light meter app
  • 🔋 Battery/trial period issues
  • 🔍 Inconsistent/inaccurate readings
  • 🙄 Misleading/deceptive marketing

More Libre Light Sensor apps to explore

FAQ about Libre Light Sensor

What are the best libre light sensor apps for iPhone?
Libre Light Sensor tops our libre light sensor apps ranking as of September 2026, with a 4.8-star average from 113 App Store ratings, and it's free to download.
Yes — 16 of the top libre light sensor apps we rank are free to download, including Libre Light Sensor and Light Meter LM-3000.
Libre Light Sensor has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 250+ libre light sensor apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Libre Light Sensor uses your iPhone's camera to measure ambient light levels and display them in Lux. This helps you understand the intensity of light in your surroundings.
By measuring light exposure throughout the day and before bed, you can identify and adjust your environment to optimize light conditions for better sleep. Understanding your light exposure can help regulate your body's natural sleep-wake cycle.