Notifications show up, however I dont get any sort of icon on the app showing me how many...

[AC Question]

While using apps like the default message, ifunny, facebook and snapchat, I get notifications however there isn't that little number on the app telling me how many messages/ notifications I have received which is very helpful for getting to the features in time on ifunny, and texting people back However I don't know if i can turn this on in settings or anything. Im using the nova Launcher on the regular S6, and I don't see any settings option for this anywhere... Anyone have an answer?