Hmm I would not know that they are using an app. Anyway I don’t think we should make any concessions or be scared of those people and adapt to them.

Noone has the right of making you swallow their religious views.

I mean I know people who are vegan or religious or atheist which are not annoying, but as you said some people make it a huge part of their identity and it sucks.

Well, militants are always annoying, be they Christian, lefties, Righties, vegans, meat eaters or whatever

When people ring your bell to annoy you about religion, reply by trying to converting them into atheism or another religion (satanism included)