Non toxic mamas

Moms who use clean products, (make up, cleaning, skin care, ect) what is the difference between the ewg website and think dirty app? Both give me different info about products. For example I was looking at one of my cover up products on think dirty and it said it was an 8 (dirty) but on ewg website it says 5 (half and half) its like that with a few other products as well. Which one do you trust more?