According to the tracking scanner Exodus (can be found on F-Droid), which keeps an updated database on trackers and runs your installed app against its register, you can track what apps are tracking you and clues of how. Saw that Boost is tracking me and uninstalled it and went straight to Jerboa. Jerboa is pretty similar to good ole’ RedditIsFun-app and easy to use, so I am personally recommending it.
From F-Droid:
Exodus (Exodus show you trackers and permissions in apps installed on your device.) https://f-droid.org/packages/org.eu.exodus_privacy.exodusprivacy/
And, importantly, If your account is paid it never even loads the libraries or initializes the ad systems so there is zero data going to these trackers.
I don’t use this app (I use Eternity), but there’s nothing shady going on here. Developing an app isn’t free and it isn’t unfair for the developer to want to earn a living.