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Best Brightness Meter Apps

249+ iOS apps curated and reviewed

4.3 avg rating
18 free apps
Updated September 2026

From beginner-friendly picks to power-user tools, our brightness meter list covers 249+ iPhone apps updated through September 2026. Compare ratings, prices, and screenshots in one place.

Compare top Brightness Meter Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Light Meter LM-3000Light Meter LM-3000Free4.5β˜… (2.6K)NoYesSep 2026
2LUX Meter - Light MeterLUX Meter - Light MeterFree5.0β˜… (3)NoNoSep 2026
3Lux Light Meter for MobileLux Light Meter for MobileFree4.5β˜… (229)YesYesSep 2026
4LUX - Illuminance MeterLUX - Illuminance MeterFreeβ€”YesYesAug 2026
5LuxMeter - Light & EV MeterLuxMeter - Light & EV MeterFreeβ€”NoNoJun 2026
6Lux Light Meter ProLux Light Meter ProFree3.9β˜… (5.1K)YesYesSep 2026
7Candela: Light MeterCandela: Light MeterFreeβ€”β€”NoJul 2026
8Lux Meter – Light MeterLux Meter – Light MeterFreeβ€”NoNoAug 2026

Top Picks for Brightness Meter

Light Meter LM-3000#1

Light Meter LM-3000 by Lightray Innovation GmbH

Simple & accurate measurement!
Editor's Choice
πŸ”§ 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

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

Room to Improve

  • πŸ› Requires diffuser for accurate readings
  • πŸ’° Expensive for a light meter app
  • πŸ”‹ Battery/trial period issues
  • πŸ” Inconsistent/inaccurate readings
  • πŸ™„ Misleading/deceptive marketing
Lux Light Meter for Mobile#3

Lux Light Meter for Mobile by WeBrain

Lux-Meter & Exposure Measure
Worth Considering
πŸ”§ Utilities
4.5(229 ratings)
FreeAdsIn-App Purchases
Lux Light Meter for Mobile screenshot 1
Lux Light Meter for Mobile screenshot 2
Lux Light Meter for Mobile screenshot 3
Lux Light Meter for Mobile screenshot 4

This app provides accurate and easy-to-use light measurements in lux and foot candles. It's ideal for photographers, plant owners, and anyone needing to assess ambient light levels in various spaces. Features include real-time color temperature measurement and calculation of the daily light integral.

More Brightness Meter apps to explore

FAQ about Brightness Meter

What are the best brightness meter apps for iPhone?
Light Meter LM-3000 tops our brightness meter apps ranking as of September 2026, with a 4.5-star average from 2.6K App Store ratings, and it's free to download.
Yes β€” 18 of the top brightness meter apps we rank are free to download, including Light Meter LM-3000 and LUX Meter - Light Meter.
Light Meter LM-3000 has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 249+ brightness meter apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app turns your smartphone into a professional-grade light meter. It measures illuminance in lux or foot-candles and correlated color temperature in Kelvin with scientifically validated accuracy, adhering to ISO/CIE 19476 standards.
Key features include industry-leading accuracy matching professional lux meters, pre-calibration for your specific device, excellent low light sensitivity, the ability to save peak readings, a HOLD function with an acoustic signal, and a custom calibration option to align readings with another meter.