# LUX - Illuminance Meter

> Light meter, anywhere

Canonical page: [https://chrome-stats.com/d/id1631156210](https://chrome-stats.com/d/id1631156210)

## Overview

- **ID:** `id1631156210`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** koji torishima
- **Category:** Productivity
- **Version:** 2.3.0
- **Last updated:** 2026-06-23
- **First published:** 2022-07-02
- **Size:** 17 MB
- **Data as of:** 2026-09-12
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/lux-illuminance-meter/id1631156210)
- **Website:** [https://lux-support.web.app](https://lux-support.web.app/)
- **Privacy policy:** [https://lux-support.web.app/en/privacy-policy.html](https://lux-support.web.app/en/privacy-policy.html)

## Description

LUX is a light meter app that measures illuminance (lux) wherever you are. Open the app and instantly see how bright your space is.

When to use it
- Check lighting in your living room, office, or study area
- Set up photography or video shoots
- Compare brightness between rooms or times of day
- Verify light levels for plants or aquariums
- Confirm any task has the right brightness

Features
- Instant measurement on launch
- Hold the value or freeze the screen
- Color temperature (CCT / Kelvin) measurement
- Auto-recorded Min / Avg / Max lux during a session
- Foot-candle (fc) unit toggle
- Measurement history (Premium)
- CSV export (Premium)
- PPFD reading for plant lighting (Premium)

Measurements are processed on-device.

Terms of Use: https://lux-support.web.app/en/terms-of-use.html
Privacy Policy: https://lux-support.web.app/en/privacy-policy.html

## Rankings

- #1,105,067 — Overall

## Similar extensions and apps

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- [Lux Meter Pros](https://chrome-stats.com/d/id6740999944)
- [Light Meter Pro - Lux Measure](https://chrome-stats.com/d/id6777116706)
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Source: [Chrome-Stats](https://chrome-stats.com/d/id1631156210)