Congrats on successfully switching to a new field, and the success of your first product. Both are difficult feats to pull off.
I'd be interested in some comparisons between Signal Group Chats and this app. I understand they're not a 1:1 but could be opportunity for useful contrast. Particularly for privacy concerns, e.g. how Signal is unable to assist LEOs. Not that I'm up to no good, but it is interesting.