About Quarmup

Why Quarmup exists

Recurring group activities fall apart when nobody knows if enough people are showing up. Quarmup fixes that.

The problem

You organize a weekly pickup game, a book club, or a running group. Every week it's the same routine: message the group chat, wait for replies, count heads, and hope enough people commit. Half the time you're still guessing an hour before the event.

What we're building

Quarmup replaces the guesswork with a clear system. Set a minimum headcount for your event, collect RSVPs through email, and let Quarmup tell the group when quorum is reached. No more tallying, no more “is this still on?” messages.

What we believe

Quarmup is built around a few ideas that shape every feature.

Email-first

Members should be able to RSVP from their inbox without downloading an app or remembering a password. Lower friction means higher participation.

Private by default

Groups are private. Your roster, your events, and your data stay contained to the people you invited. You can open things up when you want to, not before.

Quorum, not vibes

A clear threshold removes ambiguity. When enough people say yes, the event is on. Everyone knows the status without asking.

Built for real groups

Quarmup is designed for the groups that actually meet in person on a regular basis — and for groups that mix in virtual sessions. Pickup basketball, book clubs, running crews, game nights, and anything else where “do we have enough people?” is the first question every week.

Small private groups with their own rosters and thresholds

RSVPs from email with no app or password for members

Automatic go/no-go status when the threshold is met

Virtual or in-person event modes, with optional no-threshold events

Guest controls and open/private group visibility settings

Sign up for open beta

Quarmup is live in open beta. Create your account and start coordinating your group now.

Prefer a walkthrough first? View the demo.