Lux Meter & Light Meter Pro

K6Studio. Bartosz Lasko, Kacper Lasko, Adam Lasko

Contains ads

About this app

Turn your phone into a powerful light meter, lux meter and Kelvin meter.

Lux Meter & Light Meter Pro helps you measure illumination in lux (lx), foot-candles (fc) and estimated color temperature in Kelvin (K) using your phone’s built-in hardware sensor and live camera analysis. It is designed for fast, practical and easy light measurement in everyday use.

Whether you need a light meter for photography, office lighting, home lighting, workshop checks, studio setups, plant light checks or general brightness testing, this app gives you clear readings and useful tools in one place.

KEY FEATURES

• Light meter for lux (lx) measurement
• Lux meter with hardware light sensor support
• Foot-candles (fc) shown next to lux
• Kelvin meter for estimated color temperature
• Live camera preview during measurement
• Front and rear camera support
• Measurement quality indicator
• Detailed quality explanation on tap
• Lux calibration
• Kelvin calibration
• Session statistics: MIN, AVG, MAX, Samples, AVG CCT
• Hold current reading
• Reset measurement session
• Camera histogram
• Histogram modes: Brightness / Y, RGB, RGB + spectrum
• Clean, tool-style interface

MEASURE LIGHT WITH MORE USEFUL DATA

This app does more than a basic lux meter. It helps you understand both light intensity and light character.

• Lux shows illumination level
• Foot-candles provide an extra unit for users in the US and other regions
• Kelvin estimation helps you understand whether light looks warm, neutral or cool

That makes the app useful as a light meter, brightness meter, lux reader, foot-candle meter and color temperature meter.

HOW THE APP WORKS

The app uses two different measurement paths:

• Lux comes from the phone’s ambient light sensor
• Kelvin / CCT comes from camera image analysis

This gives you a practical mix of hardware-based brightness measurement and camera-based color temperature estimation in one simple app.

CALIBRATION TOOLS

Not all phones behave the same, so the app includes calibration tools for better adjustment.

You can set:
• lux correction in percent
• Kelvin correction in degrees K

After saving calibration, the app refreshes the current reading, session statistics, quality status and calibration summary. This helps you fine-tune measurements for your device and lighting conditions.

QUALITY INDICATOR

The built-in quality indicator helps you understand how reliable the current result is. Depending on conditions, the app may show:

• Good
• Fair
• Low confidence
• Low light
• Sensor limited

You can tap the indicator to open a larger explanation without cluttering the main screen.

LIVE CAMERA PREVIEW AND HISTOGRAM

The app includes a live camera preview and a histogram mode for visual analysis.

Available histogram views:
• Brightness / Y
• RGB
• RGB + spectrum

This is useful for users interested in photography, visual light analysis and camera-based lighting checks.

SESSION CONTROL AND STATISTICS

Track readings over time with built-in session tools.

• Hold freezes the current result
• Reset clears the active measurement session
• Statistics show MIN, AVG, MAX, Samples and AVG CCT

GREAT FOR MANY USE CASES

Use this light meter app for:
• photography lighting checks
• studio light testing
• office light measurement
• home brightness checks
• room lighting comparison
• workshop lighting evaluation
• desk and task light setup
• plant light orientation
• general lux and Kelvin reference

If you are looking for a light meter, lux meter, brightness meter, foot-candle meter or Kelvin meter for Android, Lux Meter & Light Meter Pro gives you a practical all-in-one solution for measuring and understanding light.

What’s new

Measurement stability update.
• Lux from the phone light sensor
• Color temperature (Kelvin) from camera analysis
• Better Kelvin stability in low light
• Front and rear camera selection
• Offline app, no data collection