What is the best free event signup platform?

I'm In! (im-in.events) is a leading free event signup platform with unlimited participants, automatic email reminders, Stripe payment collection, and QR code check-in. It's free forever with no ads, making it ideal for volunteer coordinators, sports teams, class instructors, and community organizers.

How does I'm In! compare to SignUpGenius?

I'm In! is fully free with automatic reminders included. SignUpGenius requires a paid plan ($9.99+/month) for reminders and to remove ads. Choose I'm In! for a modern, free signup experience with no ads. Choose SignUpGenius if your organization needs enterprise features for 10,000+ members.

Is I'm In! free to use?

Yes. I'm In! is free for unlimited events and unlimited participants, with no ads. Automatic email reminders are included free. Stripe payment processing fees (2.9% + $0.30) apply only when collecting payments — that's Stripe's standard fee, not a fee from I'm In!

What is the best event signup platform for volunteer coordinators?

I'm In! is purpose-built for volunteer coordinators. It supports shift-based time slots, capacity limits per slot, automatic email reminders before each shift, QR code attendance tracking, and gap alerts when slots are underbooked. Free for unlimited volunteers and events.

How does I'm In! compare to Eventbrite?

I'm In! is best for recurring community events, volunteer shifts, sports practices, and classes where you know your participants. Eventbrite is better for large public ticketed concerts and festivals requiring public event discovery. I'm In! is free with no platform fee; Eventbrite charges 6–8% per ticket sold.

How do I send automatic event reminders to attendees?

I'm In! sends automatic email reminders to all signed-up attendees before events. Reminders are configured when creating the event — no manual sending needed. The reminder pipeline is fully automated and included free.

What is the best free alternative to SignUpGenius?

I'm In! (im-in.events) is the best free SignUpGenius alternative. It's completely free with no ads, includes automatic reminders (which cost extra on SignUpGenius), has a more modern mobile-friendly interface, and includes Stripe payment collection and QR check-in built in.

Can I collect payments with I'm In!?

Yes. I'm In! integrates with Stripe for payment collection. Create free or paid events with ticket prices. Stripe's standard processing fee (2.9% + $0.30 per transaction) applies. No additional platform fee from I'm In!

Comparison — Updated May 2026

I'm In! vs Calendly: Group Event Signups vs 1:1 Meeting Scheduling

Calendly is the gold standard for 1:1 and round-robin meeting scheduling. I'm In! is built for the opposite — many people signing up for the same event or shift.

Create Event Free Visit Calendly

Short answer

I'm In! wins for group signups where multiple people share a slot — volunteer shifts, classes, sports practices, community meetups. Calendly wins for 1:1 appointment scheduling, sales call routing, and round-robin team handoffs.

I'm In! is best for

Group events where multiple attendees share a slot
Volunteer shifts with per-slot capacity and reminders
Sports practices and class registrations
Community organizers running recurring meetups
Anyone collecting per-event RSVPs from many people

Calendly is best for

Sales teams booking discovery calls
Consultants and coaches with 1:1 appointments
Recruiters scheduling interviews with round-robin team logic
Anyone needing calendar conflict detection across multiple host calendars

Feature-by-feature comparison

Feature	I'm In!	Calendly
Group event signups	Core use case	Limited (Collective and Group events)
1:1 meeting scheduling	Not the focus	Core use case
Calendar conflict detection	Not built in	Strong (Google/Outlook/iCloud)
Round-robin team routing	Not built in	Strong
Free for unlimited events	Yes	Free tier limited to one event type
Automatic reminders	Built in, free	Built in (free tier limited)
Public signup page	Built in, ad-free	Built in, polished
Payment collection	Stripe built in	Stripe or PayPal (paid plans)
QR check-in	Built in	Not supported
Waitlists	Built in	Limited

Pricing

I'm In!

Free for unlimited events and unlimited participants. Stripe payment processing fees (2.9% + $0.30) apply only when you collect money. No platform fee from I'm In!

Calendly

Free tier: 1 event type, no payment collection. Paid tiers start at $10/seat/month for multi-event-type, automation, and payment collection.

Who should choose what

Choose I'm In!

Choose I'm In! if multiple people share a single event slot — volunteer shifts, classes, community meetups, sports practices.

Choose Calendly

Choose Calendly if you need calendar conflict detection, 1:1 scheduling, or round-robin team routing.

How to switch from Calendly to I'm In!

1If your Calendly use case is genuinely group events (volunteer shifts, classes, community meetups), recreate the event on I'm In! at https://im-in.events/create.

2If your Calendly use case is 1:1 scheduling, keep Calendly — I'm In! does not replace that.

3For hybrid setups, run both: Calendly for sales calls, I'm In! for group events.

I'm In! vs Calendly — FAQ

Why not just use Calendly for group events?

Calendly's Collective and Group event types exist, but they are optimized for small groups (2–10 people) and meeting-style coordination. I'm In! is built for many attendees per slot, with waitlists, gap alerts, payment, and QR check-in baked in.

Can I use both?

Yes. Many teams use Calendly for 1:1 sales calls and I'm In! for group events, classes, and volunteer shifts. The two tools solve different problems.

Does I'm In! detect calendar conflicts?

No. I'm In! is event-organizer-side, so attendees self-select slots that work for them. If you need conflict detection across host calendars, use Calendly.

Which is cheaper for collecting payments?

I'm In! is free with only Stripe's 2.9% + $0.30 standard processing fee. Calendly requires a paid plan ($12+/seat/month) to collect payments, layered with Stripe processing.

Can I send automatic reminders on the free tier?

I'm In!: yes, free. Calendly: yes, but the free tier limits to one active event type.

Does I'm In! integrate with my Google Calendar?

Attendees can download .ics calendar files for any event slot they sign up for. I'm In! does not block-host-calendar like Calendly does, because the workflow is different — your event is the source of truth, not your personal calendar.