whoosin

Your Halloween headcount is scattered across your inbox and you have no idea who's actually coming

whoosin is the dead-simple Halloween party RSVP tool that builds your costume-party guest list in real time — no Evite ads, no guest accounts, no app to download. Your friends just reply to the email you already sent, and whoosin does the counting.

The headache: You sent the Halloween party invite a week ago and now the replies are buried in your inbox — some say "I'll be there!", some say "can't make it 😢", and you're manually piecing together a headcount while your guest list keeps changing.

1. Join the beta, then connect your Gmail — whoosin finds the invite you already sent. Nothing to set up.
2. Your group just replies from whatever email they already use — no app, no account, no link. whoosin reads each reply as yes / no / maybe (or approve / reject, or a guest count) with AI.
3. You get a live list — a running headcount when you ask for one — with manual overrides and one-tap follow-up drafts.

Private by design. Your mail is read in your browser, replies are sorted by AI for a moment and then discarded, and only the answer — yes, no, maybe — is kept. No ad trackers. Follow-ups are drafts in your Gmail; whoosin never sends mail as you.