Dark chocolate contains a higher amount of cocoa solids whereas Milk contains lower cocoa content with milk and condensed milk addition.
Dark chocolate has less sugar therefore is more bitter and rich whereas milk chocolate has more sugar and therefore is sweet.
Dark chocolate typically don’t have milk in it but milk chocolate is made with parts chocolate and milk.
Dark chocolate has more cocoa in it thus its loaded with antioxidants and healthy fats in contrast to milk chocolate which has more sugar.
Dark chcolate has a hogher percentage of cocoa thus it tastes richer, bitter and dark. Milk chocolate has more milk and sugar so its creamy and sweet.
Dark chocolate is often used for baking and desserts whereas milk chocolate is popular for snacks and candy bars.