Lux Light Meter

Contains ads
3.9
10.7K reviews
500K+
Downloads
Content rating
Everyone
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About this app

Lux Meter is a simple light meter for measuring illuminances by using the light sensor of your device. The light intensity is shown in lux and fc.

Key Features of Lux Meter:
✓ record your measured light illuminances
✓ create locations for your points of measuring
✓ live line chart shows the actual trend of the light intensity
✓ line chart for every record in your history
✓ supports lux (lx) and foot-candles (fc)
✓ choose primary unit for the light intensity
✓ calibrate your device with the multiplier
✓ shows the minimum and maximum value of a light metering session
✓ hold button that paused your current light intensity metering
✓ multi language support
✓ push notifications
✓ shows the data of your light sensor
✓ reset the minimum and maximum light intensity value
✓ keep screen on option
✓ 100% free
✓ german, english, arabic, turkish, russian, french, spanish, italian, japanese, croatian, polish, hungarian and many more

The light intensity values shown in this application are indicative and depend on your device. Some devices does not have a light sensor or the accuracy varies and therefore neither guarantee nor assume responsibility for the accuracy of the information.


Please rate this app and give feedback or recommendations to support our work. Thank You !

Logo designed by Mia.Designs / Freepik
Updated on
Jul 21, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

3.9
10.5K reviews
Chad Lovin
June 10, 2025
It seems to work well although I have nothing to compare it to. There are not too many ads in the free version. The instructions, about calibration, are confusing. But I ignored them and it doesn't seem to matter bc determining Lux using the app is as straight forward as it can be. FYI, not a big deal at all, but it doesn't measure blue light; I don't think any meter other than top dollar ones do.
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Escape Your Chains
April 18, 2023
So far it's annoying. I thought one of the ads, they are full page, was part of this app. The lux seem all over the place when I don't move altho the light looks constant. Screen affects it I added other places, but can't see how to select each one I'm hoping I can get some comparison readings. I've given it 4, in case it gets easier as I work out how to use it. Developers - it could be much more user friendly & the instructions to calibrate make no sense to me. Another device? What sort?
7 people found this review helpful
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Chris Duffy
November 3, 2020
Overshadowed by intrusive ads. Decent enough, but usability is greatly hampered by pop up and screen ads. You think this was a must have one of a kind app with the deluge. Have to click out of what you think is the app to use and then the rotation at the top of the screen. Dare you go into menu and they ask for coffee donations. Calibration is worthless, no reference or setup instructions. Hey what do.you expect for.free?
23 people found this review helpful
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