# Flicker Meter for Light - PWM

> Screen LED Eye Strain Headache

Canonical page: [https://chrome-stats.com/d/id1672848632](https://chrome-stats.com/d/id1672848632)

## Overview

- **ID:** `id1672848632`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Contechity AB
- **Category:** Utilities
- **Rating:** 4.60 / 5 (47 ratings)
- **Version:** 3.4.0
- **Last updated:** 2026-08-26
- **First published:** 2023-03-04
- **Size:** 43 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/flicker-meter-for-light-pwm/id1672848632)
- **Website:** [https://contechity.com](https://contechity.com/)
- **Privacy policy:** [https://flicker-meter.contechity.com/pp.html](https://flicker-meter.contechity.com/pp.html)

## Description

Headache or eye strain without a known cause? Is it caused by LED lights or screens? Test them with this unique app that measures high frequency flickering of light.

Suffering from eye strain, headaches, or migraines from LED lights and screens? You're not alone. Many LED lights, screens, and fluorescent lights flicker at high frequencies invisible to the naked eye, yet capable of causing headaches, eye strain, fatigue, and other symptoms.

This app helps you identify which light sources and screens are flickering, measure the intensity, and find flicker-free alternatives for your health and comfort.

FEATURED IN COMPUTER ACTIVE MAGAZINE
Computer Active recommends this app for detecting headache-inducing flicker.

KEY FEATURES
• Detect invisible high-frequency flickering in LED lamps, screens, and fluorescent lights
• Measure flicker intensity in percentage
• Measure flicker frequency in Hz
• Identify flicker-free light sources
• Easy-to-use interface with instant results

HEALTH BENEFITS
• Reduce eye strain and fatigue
• Minimize headaches and migraines
• Create a more comfortable work environment
• Make informed decisions about lighting purchases

PERFECT FOR
• Office workers spending long hours under artificial lighting
• People sensitive to light flicker
• Anyone experiencing unexplained headaches or eye strain
• Professionals evaluating workplace lighting
• Bird owners monitoring aviary lighting (birds are highly sensitive to flicker)

Full support for 40 languages with integrated documentation.

Privacy Policy: https://flicker-meter.contechity.com/pp.html
End User License Agreement: https://flicker-meter.contechity.com/eula.html

Got questions or feature requests? Email me at apps@contechity.com — I'll personally respond.

Download Flicker Meter today and take control of your lighting environment for better health and comfort!

## Rankings

- #179,101 — Overall

## Review summary

Users find Flicker Meter for Light - PWM to be a simple, focused tool that can help identify flickering rooms and is easy to use. When it works, it’s praised as effective and reasonably priced, and several reviewers noted that developer responsiveness improved performance. However, multiple reviews question the app’s reliability, especially with PWM-dimmed lights and higher-frequency flicker, where it may miss flicker or report steady output. A recurring pain point is the upfront paywall/ subscription requirement before trying the app. Overall, the app shows promise but remains inconsistent across conditions.

### Pros

- Simple, focused app that does one thing well and is easy to use.
- Helps identify which rooms have flickering lights.
- Generally useful and appears worth the price when it works.
- Noted improvement after developer feedback; responsiveness.

### Cons

- Flicker detection is unreliable, especially for PWM-dimmed LEDs and higher-frequency flicker.
- Gating by upfront subscription/in-app purchases; usability is hindered before you can test.
- Does not consistently report flicker across use conditions, leading to questionable trust in the output.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1672848632)