LUX - Illuminance Meter

Quickly check the brightness of any room, workspace, or setup. Tap to measure, hold to freeze. Export history to CSV with Premium. No account required.

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