The app is Covenant Eyes. https://slate.com/human-interest/2023/11/mike-johnson-republican-speaker-interview-covenant-eyes.html
It gives you a blurred view of the porn the other person is viewing in a near-realtime feed https://www.covenanteyes.com/how-it-works/#activity-feed
It is exactly as bad as it sounds unless they choose to claim to not be using this feature and we choose to believe them.
I like that name a ton and also “Paranoid Android” is a Radiohead song from the album OK Computer. Now I’m realizing there is no comma in that title. I always thought it was “OK, Computer” because the speaker is addressing the computer. Nope, it is “OK Computer” like a label at an antique shop letting you know the computer is not Poor or Excellent but just OK.