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Who's In
Built for office managers + workplace coordinators

Internal team events, catering counts, and dietary collection — without the spreadsheet

One-tap RSVPs for the team lunch, dietary collection for catering, headcount by 10am Wednesday for the kitchen, and a clean record for finance. Free for free internal events. No employee app downloads.

Freefor internal events
Built-indietary + headcount reports
1-tapWhatsApp / Slack share

Office event coordination is the job nobody trained you for

As an office manager you're the unofficial event planner — team lunches, all-hands meetings, quarterly socials, holiday parties, summer offsites. Each one needs accurate headcount for catering, dietary information for the kitchen, ideally a record for finance, and a way to share that doesn't require IT to set up a new tool.

Who's In is the closest thing to "Eventbrite for internal teams". One-tap RSVPs that work in any browser (no employee app). Dietary collection at signup for catering. Headcount-by-deadline reporting so you give the kitchen accurate numbers Wednesday morning for Friday's lunch. Recurring weekly / monthly events for the standing socials. Free for free internal events.

For paid events (offsites, team-building experiences), Stripe checkout. Funds go to your company account. CSV export for finance. Clean.

Sound familiar?

You're not alone. These are the challenges we hear every day.

Email replies aren't a headcount

You email "RSVP for Friday lunch by Wednesday". By Wednesday you've got 18 yes-replies, 4 maybes, 2 OOOs, and 12 silent treatments from people who definitely will or definitely won't show up.

Avg internal email RSVP response rate: ~60% within deadline

Dietary needs require manual chasing

Catering wants the breakdown by Wednesday. You email asking for dietaries. People reply on Slack instead. By Thursday morning you're cross-referencing two channels to give the kitchen final numbers.

Avg corporate event organiser sends 8+ separate dietary follow-ups per event

Finance wants a record. Email is not a record.

Quarterly social. Finance asks: who attended, what did the company spend per head, what's the breakdown by department. You're piecing it together from Slack, email, and your memory.

~40% of internal corporate events have no formal attendee record

IT won't approve a new tool for a one-off lunch

You'd love a real RSVP system. But standing it up means SSO config, security review, procurement — for a $400 team lunch. So you stay on email + a Google Sheet. Forever.

Avg corporate procurement: 6+ weeks for a new SaaS approval

Built for the office manager's actual job

One-tap email + Slack RSVPs

Drop the link in your team Slack channel or email it. Employees tap, RSVP in two seconds, done. No app, no IT review, no SSO required (it's external — your team uses it as users, not employees).

Dietary collection at signup

Required signup question — vegetarian / vegan / gluten-free / nut allergy / dairy-free / no preference. Clean summary on the dashboard. Email export to send straight to catering.

Headcount-by-deadline auto-report

Set a deadline (e.g., Wednesday 10am for Friday lunch). At the deadline, you get an email with final headcount, dietary breakdown, and CSV. Catering gets clean numbers, on time.

Recurring weekly + monthly events

Wednesday team lunch, monthly all-hands, quarterly social — set up once. Each instance is created automatically. Edit one specific week's location without breaking the recurring pattern.

Attendee + departmental record export

Post-event CSV export with attendee list, dietary needs, and (optionally) department/team if you collect it. Clean record for finance, HR, or year-end reports.

Paid offsite / team-building checkout

For offsites or team-building experiences with a per-head cost, Stripe checkout. Each employee pays via the company card or expensed personally. Refunds + waitlist included.

Three office event types, three setups

Weekly team lunch, 25 employees

Free Events tier. Recurring Wednesday 12pm. Dietary collection. Headcount deadline: Tuesday 4pm. Auto-report email Wednesday 10am to send to catering.

Quarterly all-hands, 80 employees, off-site venue

Free Events tier. Capacity 80. RSVP deadline 1 week out. Dietary + accessibility-needs collection. Apple Wallet pass with venue address. CSV export for HR.

Annual offsite, 120 employees, $250/head

Studio plan optional ($15.83/mo annual). Stripe checkout for the per-head cost (paid via company card or personal expense). Cancellation policy: 30 days. CSV export for finance.

Why office managers leave email + spreadsheets

vs Email + Google Sheet

Email response rate is 60% within deadline. The sheet has 4 tabs and only you understand it. By the time you've reconciled, the catering deadline has passed.

vs Microsoft Forms / Google Forms

Better than email for the initial form. But no RSVP-deadline reminders, no waitlist, no Apple Wallet pass, no integrated payments for offsites.

vs Eventbrite for internal events

Looks too "ticketed" for a free internal event. Employees confused by the booking flow. Eventbrite's brand on every email feels off for an internal lunch.

“I'm an office manager for a 90-person company. We do a weekly Wednesday lunch + a quarterly social. Used to be a 4-tab Google Sheet. Switched to Who's In. The auto-report Wednesday morning saves me an hour a week and the kitchen actually trusts the numbers now.”
SK
Sarah K.
Office Manager · Mid-sized tech company, London

Frequently asked

Real questions from office managers.

Do my employees need to download anything?
No. They tap your link in Slack or email, RSVP in two taps, done. No app, no account, no signup. They get a confirmation email with the event details. Their RSVP is in their inbox.
Can I get a final headcount delivered to my email by a specific time?
Yes. Set the RSVP deadline (e.g., Wednesday 10am for Friday lunch). At the deadline, you automatically get an email with final headcount, dietary breakdown, and CSV. Forward straight to catering.
Is it free for internal company events?
Yes. Events tier is free forever for free events. Unlimited employees, unlimited weekly lunches, unlimited dietary tracking. The 2.7% fee only applies if employees pay (e.g., a $250 offsite ticket).
Will IT need to approve this?
Probably not. Who's In is an external service that your employees use as users (not employees). No SSO required. No data integration. Same approval level as Eventbrite — typically none for a free tool.
Can I export an attendee list for finance / HR records?
Yes. Post-event CSV export includes attendee names, RSVP status (confirmed / cancelled / no-show), dietary needs, and any custom fields you collected (department, team, role). Send straight to your finance system.

Make your next office event easier than the last

Free for internal events. Headcount + dietary report delivered on time. No IT approval needed.

Free for internal company events
Headcount-by-deadline auto-report
Dietary collection at signup
CSV export for finance / HR

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