You can view the analytics collected by your iOS device in Settings > Privacy > Analytics. Below each switch there is a link to an explanation of what is collec

You can view the analytics collected by your iOS device in Settings > Privacy > Analytics. Below each switch there is a link to an explanation of what is collected. (Specifically regarding app usage, not much is explained.) At a quick glance, I cannot see any information about third-party apps being shared in this data set.