It's actually kinda interesting/terrifying to imagine religious technology... like those "safe driving" apps for insurance, but instead monitoring your whereabouts to comply by some arbitrary mythology and inflicting social punishment whenever you stray. But, of course, the preachers themselves wouldn't be forced to use it. What would a polygamous Tinder look like? Or a Hadithpedia? Bible camp MMOs? Whereas China tries to steer technology towards secular collective capitalism, I could see religious states using it to identify, track, and segregate populations by religion. Israel, looking at you.
Some of the world's most enduring sci-fi/fantasy worlds are religious works, and to see them brought into the modern secular existence is both sort of jarring and fascinating.
Profit-wise, this has all the same potential as the echo-cesspool of Twitter/YouTube, but under guise of God. That potent combination of money, God, guns... yeah, goodbye civil US society.