Just for clarification. Nostr isn't an app. It's a protocol on which apps are built.
The main apps being used right now are Blue Bird/IG type apps. There will probably be apps developed that we didn't even know we wanted.
I'm certainly not an expert or a hater, just thought you might want a a bit of clarification.
It may just be symantics, but it may be a pretty important distinction in the future.