whoosin — home

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

Your group doesn’t download anything, click anything, or change anything. They just reply to your email — you get the list.

Connect your Gmail — free

First event free forever. No card.

The magic moment

Connect Gmail and whoosin finds the invites you already sent.

No setup, no forms, no importing a roster. whoosin scans your own Sent mail for the group emails that look like invites — then reads the replies and keeps the count for you.

Who’s in, who’s out, who’s wavering, who’s gone quiet — one card per event, always current.

Watch it work

Eight invites, four replies, one list.

Anonymous sample data, real behavior — including the part where the replies themselves are never kept.

The animation shows five moments. One: whoosin finds a sent invite, “Thursday Tennis — who’s in?”, sent to 8 people, and one click on Track turns it into an event card where all 8 people show “no answer”. Two: replies arrive and are classified — Alex “I’m in!” becomes yes, Jordan “can’t make it this week” becomes no, Sam “maybe if work allows” and Casey “I’m in unless it rains” become maybe. Each reply snippet dissolves after it is read — only the answer is kept. Three: three safety notes appear — your mail is read in your browser only, message content is never stored, and whoosin only creates drafts, it never sends as you. Four: one click on Draft follow-up offers Everyone (8) or Haven’t answered (4); choosing the 4 non-responders creates a draft in your own Gmail — you hit Send. Five: the loop closes on the owl and the line “Who’s in? You know.”

How it works

Three steps. The third one is the whole point.

Connect Gmail

It finds the invites you already sent. Track the ones you care about with one click — nothing to set up, nobody to onboard.

AI reads the replies

Every reply becomes a yes, no, or maybe — and chatter about directions or tee times never overwrites someone’s real answer.

“I’m in unless it rains” → maybe

One live list — and one click to chase the silent ones

Yes, no, maybe, no answer — the silent ones impossible to miss. One click drafts a follow-up in your Gmail to exactly the people who haven’t answered. You hit Send.

Someone texted you instead? Add them by hand in three taps.

Anything you organize over group email.

If they reply to you, whoosin can count it.

Poker night Tennis ladder Team picnic Pickup hockey Golf league The block party Book club
Privacy, by architecture

Your mail never leaves your browser.

whoosin was designed so that it can’t hoard your email — not so that it promises not to.

  • Your Gmail is read in your browser only. Message content never touches our servers.
  • We store statuses — yes, no, maybe — never the messages themselves.
  • Untrack an event and its data is deleted instantly. Archived events purge automatically.
  • Follow-ups are drafts in your Gmail. whoosin never sends mail as you — you always hit Send.

whoosin’s use of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.

Pricing

Cheaper than the thing you’re organizing.

Your first event is free, forever. No card, no clock — track one event for as long as you like.
$4/month
Unlimited events. Cancel anytime.
For the curious.
Best value · save $18
$30/year
Unlimited events, all season and off-season.
About a dozen golf balls.

Questions, answered.

Does it work with my email?

whoosin works with Gmail and Google Workspace accounts — that’s where your sent invites and their replies live. If your league email is on a custom domain run through Google Workspace, that’s Gmail too, and it works.

Does my group need to sign up for anything?

No. Nothing to install, no link to click, no account to make. Your group replies to your email from whatever they already use — Outlook, Yahoo, iCloud, a work address, anything. Only you, the organizer, need whoosin.

What does the AI do with the replies?

A short snippet of each reply is classified into yes, no, or maybe — transiently. Reply content is never stored, never logged, and never used to train anything. Only the verdict and a short note (like “in unless it rains”) are saved, so your list stays consistent.

Can I correct the AI if it gets one wrong?

One click. Change anyone’s status right on the card. And if they later reply with a different answer, whoosin flags the change so a stale correction never hides a cancellation.

What if someone texts me instead of replying?

There’s always one. Add them by hand in a few taps — name, status, optional note (“replied by text”) — and they show up in the list and the CSV like everyone else.

I organize from Outlook / Microsoft 365. Anything for me?

Not yet — Gmail first. Outlook support is on the roadmap; there’s a waitlist inside the app, and the size of that list decides how fast it happens.

Stop chasing. Start asking once.

Connect your Gmail — free

First event free forever. No card.