It works. – myLightMeter PRO Review

I was skeptical about this product when dedicated light meters are hundreds of dollars. But, I wanted to give it a try. I put this alongside my brand new Sony A7 III and metered a few dozen locations, indoors and outside. This meter app was within 1/3 of a stop each time or dead on the money. Well worth the purchase price.
Review by ThisGuy1050 on myLightMeter PRO.