Light Meter - Lux & Kelvin

Trajkovski Labs

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About this app

Professional light intensity (lux) meter that measures illumination levels in lux.

It features direct reading in lux or fc (foot candles) and can display the measured light color temperature in degrees Kelvin (K) if your device supports this.

NOTE: This app requires device with a light sensor to function. Also, light color and infrared measurement works only on small number of devices. In order for this meter to be exact you need to perform a calibration procedure described in the apps's info screen.

Ratings and reviews

No CCT measurement, and only uses front camera, so it's completely unusabale because you can't take readings and see your screen at the same time.

This is the best light meter for smartphone Update: Sep 23. No more color temprature reading (samsung galaxy s22 ultra)

Light brightness (LUX or LUMENS) and Light Temperature (Frequency) readings match an older light meter I used for film photography. The accuracy of the app depends on the phone used. On my Pixel 3a it stunk. With my Samsung Galaxy it was very accurate. Great app. Light temperature is not a reading of heat, its a reading of frequency. This not a Spot meter. If you want a spot meter buy an old Weston Spot Meter.

What's new

V3.6 changes: Improved graphics and infrared option in settings.