Speaking Lux Meter is a free Android utility and tools application developed by maruar. It allows users to measure brightness using the light sensor on their phone. With the ability to provide audio voice support, users can conveniently hear the measured brightness levels.

The app offers measurement units in lux and foot-candle, catering to different user preferences. Additionally, it provides a chart for visualizing the illuminance of different light sources, making it easy to compare brightness levels. Users can also capture screenshots of the measurements for future reference.

Speaking Lux Meter supports various useful features such as displaying the maximum value, minimum value, and average value of the measured brightness. It also offers the option to calibrate the measurement for accurate results. Users can toggle the sound on or off according to their preference.

Overall, Speaking Lux Meter is a handy tool for anyone who needs a quick and convenient way to measure brightness using their Android device's light sensor.