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App Store Apps > Productivity > LUX - Illuminance Meter
LUX - Illuminance Meter icon

LUX - Illuminance Meter

by koji torishima · Productivity · Free
On the App Store since July 2022 · Data updated 2026-10-31

LUX - Illuminance Meter is made and published by koji torishima. AppBrain is an independent app data site and isn't affiliated with koji torishima. The app name, icon, screenshots and description belong to koji torishima and are shown as published on the App Store.

AppBrain's verdict

Rating on App Store
5.00
1 ratings
Last updated
October 20, 2026

It doesn't have enough ratings yet to judge what users think.

Official page on the App Store

Rankings

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Competitors

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Releases

Updates seen on the App Store
Version
2.4.1
Launched
July 2022

No changelog data

User feedback

Ratings and reviews on the App Store

Comments on LUX - Illuminance Meter for iOS

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Technology

Found in the app by AppBrain
Price
Free
App size
17.5 MB
Content rating
Everyone

Technologies used by LUX - Illuminance Meter

About the app and developer

About LUX - Illuminance Meter

LUX - Illuminance Meter is a productivity app developed by koji torishima.

User Ratings

LUX - Illuminance Meter is rated 5.00 out of 5 stars. The rating is based on one rating ratings.

App Information

LUX - Illuminance Meter is freely available from the App Store. The app size is 17.46 MB. The latest version available is 2.4.1. The last update was on October 20, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since July 2022.

Developer information for koji torishima

koji torishima

Address:

Frequently asked questions about LUX - Illuminance Meter

Is LUX - Illuminance Meter free?

Yes. LUX - Illuminance Meter is free on the App Store.

Is LUX - Illuminance Meter still available?

Yes. LUX - Illuminance Meter is on the App Store, and the last update we saw was on October 20, 2026.

How large is LUX - Illuminance Meter?

LUX - Illuminance Meter is 17.46 MB.

Is LUX - Illuminance Meter suitable for children?

App Store rates the content of LUX - Illuminance Meter as suitable for everyone.

How do people rate LUX - Illuminance Meter?

LUX - Illuminance Meter has one rating of 5.00 stars on the App Store.

Who made LUX - Illuminance Meter?

LUX - Illuminance Meter was developed by koji torishima. It is listed in the productivity category on the App Store.

What are the best alternatives to LUX - Illuminance Meter?

People looking at LUX - Illuminance Meter also look at these productivity apps: Electronic seal - remote work!, Calculate Comfort, List Writer - Touch or Pen, voestalpine Welding Calculator, Electronic Toolbox Pro.

Share LUX - Illuminance Meter

Store listing

By koji torishima, from the App Store
LUX - Illuminance Meter Screenshot 1 of 5
LUX - Illuminance Meter Screenshot 2 of 5
LUX - Illuminance Meter Screenshot 3 of 5
LUX - Illuminance Meter Screenshot 4 of 5
LUX - Illuminance Meter Screenshot 5 of 5
Screenshots by koji torishima, from the the App Store listing
Description by koji torishima Written by the developer, not by AppBrain. Click to read.
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
- Compare with reference levels by scene (some features need Premium)
- Measurement history (Premium)
- CSV / PDF export (Premium)
- PPFD / DLI calculation for plants (Premium)
- Continuous logging with charts (Premium)

Measurements are processed on-device.

Terms of Use: https://kojitorishima.org/en/products/lux/terms/
Privacy Policy: https://kojitorishima.org/en/products/lux/privacy/
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