Most builders/investors have no understanding of what good consumer retention looks like, or how exceptional 25%+ D30 is.
If you vibe code a social app, expect a nice red ZERO%.
Even a16z’s own benchmarks classify 20% D30 OK, 25% Good, 30% Great.
I once showed 56% W4 retention in an early cohort and it was dismissed as not good enough. What?!
Take more.
Share more.
Remember more.
That’s probably the simplest reason we’re building 9PM.
A week ago, our little app was just @_a_lex_is, me, and a few close friends.
Today there’s a 9PM across 3/4 of the world’s time zones. That’s wild.
People are begging for innovation in social. We hear it, and we see it in the data.
More importantly, we finally have a real base of people using it, leaving, coming back, and telling us what they love.
Now we can really build with impact.
We got 9pm.app for $20.19. Not sure I’m mad about this.
400k views, hundreds of messages, and thousands of downloads from our little video filmed with my buddy David.
Zero paid. Zero tricks. Just a tweet to show my friends what we’ve been working on.
Twitter is wild! Wayyyyyyy beyond what I expected.
Wow, I was not expecting this reception. Thank you for all the messages, feedback, and love.
Since I tweeted this, @_a_lex_is has shipped 2 features (thanks Gaetan), fixed 3 bugs, and pushed 2 new internal builds, while I’m here welcoming our little community :)
See you at 9PM.





