3 Apps to Tell You What's Inside Any Food - MUO Below are three apps that can tell you what's in your food and take the guesswork out of healthy eating. Let's dive in. 1. Yuka Yuka is a mobile app that analyzes food and cosmetic products. Its database includes over 1.5 million foods and 500,000 cosmetics, from diet coke and marshmallows to bar soap. More than 800 new products are added daily.