idk.. what feature does facebook and twitter have that a nostr app doesn't? There are plenty of apps and good one too for nostr. The reason people don't stick around nostr is not the app quality. The quality is arguably better ( no ads...) . It's the addictive, gamification of their apps that nostr apps don't have. Main stream social media is designed to be addictive. It's expected nostr apps will have less use. And they SHOULD. If by "better" you mean "more addictive" sure. I think the pace of development is just fine and there are a handful of nostr apps that shine much more brightly with quality comparted to traditional social media.