sean (1) having a pinned discussion is a good tip. Talk about privacy concerns is premature, since it does not even exists the app itself.
An app is an app, probably offers a better experience than a pinned discussion, and offer a lot of possible features (personalized notification for an app category for example, home screen widgets, search find and related apps and only imagination knows what else).
I have paused the development because there’s not enough apps to make it worth over a pinned discussion tho, but in future, when the apps will be many.. then it would help a dedicated app.