I think of the whole ecosystem as "Pubky" in the same way I think of the Nostr ecosystem as "Nostr."
Perhaps it would be more semantically correct to compare the Pubky app to the Primal app. I use the Primal app (which is excellent), but I think of it as using "Nostr."
Pubky also has an underlying protocol - pubky core. There's other components as well. It seems to have been really well thought out from an architectural perspective.
My general understanding is that it aims to solve many of the critical limitations of Nostr and other decentralized social networks/platforms/protocols.
The UI/UX of the MVP is great. One thing that really stands out is how fast it is, but it's not really a fair comparison because it's not yet decentralized. Also, the embeds are impressive and it handles a lot of different media types very well.
I have zero tribalism instinct when it comes to various decentralized technologies. For me, the only competition that matters is between centralized and decentralized.
This allows me to be objective, and from what I've seen so far, Pubky (the protocol / ecosystem) is objectively superior to Nostr (from a technical / architecture perspective).
It doesn't have much of a community yet, as it's just a small group of beta testers at the moment. It will be interesting to see how the community develops after the actual launch.
[For the record, I have no affiliation with Pubky, Synonym, etc. - I'm just a rando lurker rooting for decentralization to win]
