AppRe-engagement campaigns target your________to drive even more conversions and loyalty.

App re-engagement campaigns are designed to reconnect with users who have already downloaded and used your app. The goal is to encourage them to use the app again, increase their activity, and ultimately drive more conversions (like purchases or subscriptions) and foster loyalty. "Previous users" is too broad; it could include users who have uninstalled the app or are no longer active, and while some re-engagement might target them, the primary focus is on currently "existing users" who are still active or recently active. "Newsletter subscribers" are a marketing segment, but not necessarily app users, so they are not the direct target of app re-engagement campaigns.