Lux Light Meter

2025.07.27

Waldau Webdesign

4.43

1,967 reviews

100,000+
Downloads

Free

Lux Light Meter is a simple tool for measuring illuminance intensity (lux, fc).

Lux Light Meter uses your device's light sensor to deliver precise illuminance readings in lux (lx) or foot-candles (fc). It supports unit customization, calibration, min/max/avg tracking, a hold function, and a keep-screen-on option, all for free, with multi-language support. With 100,000+ total downloads and 370 in the last 30 days, it remains a sustained choice in the TOOLS market category.

Pros & Cons

100% free with no in-app purchases
Supports lux (lx) and foot-candles (fc) with a selectable primary unit
Calibration multiplier to adjust device accuracy
Min/Max/Avg readings with a hold function and keep-screen-on option

Not ranked in any top lists, which may reflect limited exposure compared with some competitors
Less emphasis on broader lighting features (e.g., brightness or exposure) that some competitors highlight in messaging

About Lux Light Meter

Lux Light Meter is a tools app developed by Waldau Webdesign.

Download Statistics

Lux Light Meter has been downloaded 150 thousand times. In the last 30 days, the app was downloaded 370 times.

User Ratings

Lux Light Meter is rated 4.43 out of 5 stars. The rating is based on 2 thousand ratings.

App Information

Lux Light Meter is FREE to download. The APK download size is 4.75 MB. The latest version available is 2025.07.27. The last update was on July 21, 2025.

Technical Requirements

Lux Light Meter requires Android 4.4+ or higher. The app has a content rating of Everyone. The app has been available on Google Play September 2018.

Description

Lux Light 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.

More data about Lux Light Meter

Price	Free to download
Total downloads	150 thousand
Recent downloads	370
Rating	4.43 based on 2 thousand ratings
Ranking	Not ranked
Version	2025.07.27
APK size	4.75 MB
Number of libraries	21
Designed for Android	4.4+
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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Alternative downloads for the Lux Light Meter app

Lux Light Meter compared with similar apps

Common keywords of similar apps

Fc Shown Minimum Metering Multi Language Icons Light Lux Intensity Meter Device Support Simple Measuring Sensor App Maximum Average Accuracy

Keywords missing from this app

Measure Measurement Brightness Features Lighting Exposure Plants Phone Level Room Easy Free Illuminance Values Measurements Accurate Ambient Indoor Pro Plant Recent Calibration Home Photone Office Levels Devices Screen Work Time Https Shows Foot Tool Tools Diffuser Results

Google Play Rating history and histogram

Rating history

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1.2K

560

110

Downloads over time

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Lux Light Meter has been downloaded 150 thousand times. Over the past 30 days, it averaged 12 downloads per day.

Changelog of Lux Light Meter

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Developer information for Waldau Webdesign

Waldau Webdesign

info@waldau-webdesign.de

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Comments on Lux Light Meter for Android

★★★★★ Jorge Nowogrodski · Sep 24, 2025

A very useful app to measure the amount of light my plants receive. It allows me to adjust the lamp height/position accordingly.

★★★★☆ deepak bhagat · Sep 12, 2021

First experience...using first time.... unbelievable... measuring lux.... without any instruments.

★★★★☆ Henk Cornelissen · May 6, 2019

Works perfectly, although I've never tested it next to a calibrated lux meter, app has few ads.

★★★★★ Justin Reis · Jan 21, 2019

Best of many free light meter apps tried. Ads are a bit more intrusive (full screen at startup) than with some alternative apps (small banner). But layout is superior in many ways: showing mean & median values since reset as well as both lux & foot candles all readable at a glance. My Samsung reads similarly to a calibrated meter under some conditions, but is mostly useful only for relative comparisons not absolute measurements. Still very useful.

★☆☆☆☆ Fussldrach Kaosmacher · Jan 2, 2020

Appears to be either broken or spammy or malware. On startup, it first showed four introductory screens, indicating that calibration with a reference device was necessary. Then it continued directly to an entire screen of what appeared to be animated adds. I never even tried out its functionality after that - too afraid that I'd "catch something".

★☆☆☆☆ kanna raja · Nov 21, 2019

What kind of sensor needed??? My mobile is Samsung m30s. Pls suggest the lux meter app?

★☆☆☆☆ avik d · Mar 18, 2021

My mobile does not have sensors, so I want it to have a camera sensor, so I will give it as only a star.

Google Play Rankings for Lux Light Meter

This app is not ranked

Technologies used by Lux Light Meter

12 permissions · 21 libraries

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Trust & Safety: App requests a set of ad-related and standard device permissions (including ACCESS_ADSERVICES_AD_ID, ACCESS_ADSERVICES_ATTRIBUTION, ACCESS_ADSERVICES_TOPICS, ACCESS_NETWORK_STATE, INTERNET, WAKE_LOCK, FOREGROUND_SERVICE) plus BIND_GET_INSTALL_REFERRER_SERVICE and AD_ID. This combination is typical for free tools that rely on ad attribution and continuous operation; no highly sensitive permissions appear beyond common network/foreground-service usage.

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