Best Brightness Meter Apps

249+ iOS apps curated and reviewed

4.2 avg rating
19 free apps
Updated October 2026

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

Compare top Brightness Meter Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Light Meter LM-3000Light Meter LM-3000Free4.5β˜… (2.6K)NoYesOct 2026
2LUX Meter - Light MeterLUX Meter - Light MeterFree4.2β˜… (10)NoNoOct 2026
3LUX - Illuminance MeterLUX - Illuminance MeterFree5.0β˜… (1)YesYesOct 2026
4Luminosys - Light MeterLuminosys - Light MeterFree4.3β˜… (10)YesNoOct 2026
5LuxMeter - Light & EV MeterLuxMeter - Light & EV MeterFreeβ€”NoNoOct 2026
6Lux Light Meter for MobileLux Light Meter for MobileFree4.5β˜… (236)YesYesNov 2026
7Light Meter - LUXLight Meter - LUXFreeβ€”NoNoOct 2026
8Lux Light Meter ProLux Light Meter ProFree3.9β˜… (5.2K)YesYesNov 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 Meter - Light Meter#2

LUX Meter - Light Meter by Yannick Binay

Illuminance for photo & plants
Strong Contender
πŸ”§ Utilities
4.2(10 ratings)
Free
LUX Meter - Light Meter screenshot 1
LUX Meter - Light Meter screenshot 2
LUX Meter - Light Meter screenshot 3
LUX Meter - Light Meter screenshot 4
LUX Meter - Light Meter screenshot 5

This app measures ambient light levels in lux or foot-candles using your iPhone camera. It provides instant feedback on whether a space is too dim, comfortable, or bright enough for various tasks and offers calibration options.

LUX - Illuminance Meter#3

LUX - Illuminance Meter by koji torishima

Light meter, anywhere
Worth Considering
πŸ“Š Productivity
5.0(1 ratings)
FreeAdsIn-App Purchases
LUX - Illuminance Meter screenshot 1
LUX - Illuminance Meter screenshot 2
LUX - Illuminance Meter screenshot 3
LUX - Illuminance Meter screenshot 4
LUX - Illuminance Meter screenshot 5

Measure ambient light levels in lux or foot-candles instantly. Useful for photography, plant care, or verifying brightness for various tasks. Offers advanced features like color temperature and measurement history for premium users.

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 October 2026, with a 4.5-star average from 2.6K App Store ratings, and it's free to download.
Yes β€” 19 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 October 2026.
We track 249+ brightness meter apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.