Measure how much your lights and screens are flickering or blinking
About LED Light Flicker Meter
LED Light Flicker Meter is a tools app developed by Contechity AB.
Download Statistics
LED Light Flicker Meter has been downloaded 47 thousand times. In the last 30 days, the app was downloaded 800 times.
User Ratings
LED Light Flicker Meter is rated 3.88 out of 5 stars. The rating is based on 460 ratings.
App Information
LED Light Flicker Meter is FREE to download. The APK download size is 20.40 MB. The latest version available is 3.3.3. The last update was on June 10, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play December 2022.
Description
Have you experienced eye strain, headache, migraine or other symptoms from being exposed to flickering lights or screens? Use this app to measure which lights or screens are flickering and how much and which are flicker-free!
This app measures flickering of light that are flickering/blinking so quickly so that we cannot usually see it with our eyes. But it can still have a negative affect on us - eye strain, headaches, migraines and even epilepsy seizures are reported as consequences of flickering lights. With this app you can measure if your LED lamps, LED bulbs, fluorescent tube lights and screens are flickering and how much.
How to Use the App? Place the phone in a position so that the camera is facing a surface, such as a white paper, an evenly colored wall or a floor, that is lighten by the light source you want to measure the flickering from. It is very important to let the phone stand still during the measurements as movement can cause the meter to measure a too high flickering value.
What is a Flickering Percentage? The percentage flickering is the apps estimation of the difference between the maximum and minimum light output from a light source. A flickering measurement value of 25% means that the minimum light varies between 75% and 100% light output. A light that switches off completely in each cycle will have a flickering measurement of nearly 100%. A light that does not vary in light output will have a flickering measurement of nearly 0%.
How Accurate are the Measurements? As long as the phone during measurements is standing absolutely still, without any movements and are directed towards an even surface, the accuracy seems to be within plus/minus five percentage points under normal circumstances on most devices.
The app now supports 40 different languages.
Free for a Limited Time Enjoy full functionality for a few weeks. Afterwards, a one-time fee or subscription is required.
Contact I am always interested in hearing from you. Feel free to contact me with questions, complaints and improvement ideas. I try to answer all emails. apps@contechity.com
Recent changes: • Added support for sharing individual measurements. • Stability improvements.
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This works. I tested light therapy lamps with virtually no flicker. A couple of junk $9 under cabinet leds were off the charts. Old, cheap, & not DC. The data is accurate. Was unsure on keeping an inexpensive light therapy lamp. It's a keeper. For the nerd that needs to know.
★★★★★F L· Jun 30, 2023
Works perfectly! It shows very accurately if an LED is flickering and to which degree! Saves a lot of hassle and can be pointed exactly at the light you like to analyze!
★★★★★Brendan Kiernan· Nov 26, 2025
Very impressed. Some LED bulbs have less than 5% flicker, some over 50%. Could explain eye strain.
★☆☆☆☆Turbo Rooster· May 22, 2026
Doesn't work. Shows sunlight and known flickering LED light as about the same flicker frequency
★☆☆☆☆Marcin Grabowski· Oct 8, 2024
1. App is listed as free, and it's only free for 2 weeks after which requires license fee. Developer responded to my previous rating and comment by adding note about "a few weeks" trial period ("a few" == 2?) and keeping app listed as free. 2. Whatever the developer did after responding to me, my rating and comment disappeared :shrug: reposting with update here 2. After developer response it's still not clear why calibration is required - it's rather poor quality.
★☆☆☆☆Peter Hackett· Feb 27, 2025
Can't use app without signing up for monthly subscription, which can be cancelled before trial period ends.
★☆☆☆☆Tyson Danby· Sep 1, 2025
Not accurate for lights known to flicker 90+% at 120Hz. This app reads <10% for those lights, so it is basically useless
Google Play Rankings for LED Light Flicker Meter
This app is not ranked
Technologies used by LED Light Flicker Meter
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