Not a Lux meter

This app works like a luminance meter rather than illuminance meter. It doesnt measure amount of light that falls on the camera but rather the amount of light that is reflected of a surface. That is NOT lux, that should be in cd/m2.
This tool might measure the output of light from a direct source verifying lumens or measure light that is reflected from a surface, but neither is an accurate measurement of lux.

Mhpaget about LightLAB PRO