whoosin

Pronounced “who’s in” — find out who’s coming without asking twice.

| who’s · in |v. to find out who’s coming without asking twice.

whoosin

| who’s · in |v. to find out who’s coming without asking twice.

Connect your Gmail

whoosin reads the replies to the group emails you've sent and turns them into a live attendance list. Your mail is read in your browser only — message content never touches our servers.

Outlook support is on the roadmap — leave your email and we'll let you know.

Gmail needs a quick reconnect — your browser may have blocked the popup.

Events I'm tracking

Looking for recent RSVP-style emails…

Confirm

Add manual response

For someone who answered outside the email thread — texted you, told you in person.

Name Email or identifier optional — blank uses name@manual Status Note optional

Draft a follow-up

Send to

Everyone People who haven't answered People who said yes Let me pick

Subject Message

Delete account

Deletes all tracked events, classifications, and your account — immediately and permanently. Your Gmail is untouched. A non-identifying hash is kept to prevent free-event credit reuse.

Type DELETE to confirm