Prayer and mental health apps have been found to be highly privacy invasive, including apps like: Hallow, Abide, Pray.com and KJB Daily Verse.
Pro Tip: you don't need an app to pray
https://www.theverge.com/2022/5/2/23045250/mozilla-mental-health-app-privacy-analysis
@mpjgregoire
I use F-Droid for some things, but also Shelter. It was time-consuming to setup, but I keep many occasional or questionable apps in the Android work profile in a "frozen" state. They come to life only when I need them, and even then are (mostly) isolated from the normal environment.
All of this reduces the problem, but isn't a fix.