Compared by the I'm In! team

I'm In! vs Calendly: group event signups vs 1:1 meeting scheduling

Calendly is great at booking 1:1 meetings. I'm In! is the opposite: lots of people signing up for the same event or shift.

Short answer

Pick I'm In! when several people share a slot. Pick Calendly for 1:1 appointments, sales-call routing, and round-robin handoffs.

How we checked this. On July 16, 2026 we went through the live I'm In! product and the competitor's public pages. We say what I'm In! can't do, and we link the vendor's own pages because plans change.

Sources: Calendly features, Calendly pricing

Corrections: [email protected]

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 regular meetups
  • Anyone collecting RSVPs from a crowd

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

Side by side

FeatureI'm In!Calendly
Group event signups
Core use case
Limited (Collective and Group events)
1:1 meeting scheduling
Not what it's for
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
Built in, polished
Payment collection
Not available yet
Stripe or PayPal on eligible plans
QR check-in
Not available yet
Not supported
Waitlists
Built in
Limited

Pricing

I'm In!

Free for unlimited events and people. No payment collection yet.

Calendly

Calendly publishes current free and paid plan limits for event types, automation, teams, and payment collection on its pricing page.

Which one fits you

Choose I'm In!

If several people share one slot: volunteer shifts, classes, community meetups, sports practices.

Choose Calendly

If you need calendar conflict checks, 1:1 booking, or round-robin team routing.

How to switch from Calendly to I'm In!

  1. 1If you use Calendly for group events like shifts, classes, or meetups, recreate them at https://im-in.events/create.
  2. 2If it's 1:1 scheduling, keep Calendly. I'm In! doesn't replace that.
  3. 3Doing both? Run both: Calendly for the calls, I'm In! for the group events.

Questions about I'm In! vs Calendly

Why not just use Calendly for group events?

Calendly is built around booking against someone's calendar. I'm In! is built for lots of people sharing slots, with capacity and waitlists.

Can I use both?

Yes. Calendly for 1:1 calls, I'm In! for group events, classes, and volunteer shifts. They solve different problems.

Does I'm In! detect calendar conflicts?

No. People pick the slots that work for them. If you need conflict checks across host calendars, use Calendly.

Which is cheaper for collecting payments?

I'm In! doesn't collect payments yet. Calendly's pricing page lists which plans take payments.

Can I send automatic reminders on the free tier?

I'm In!: yes, free. Calendly: yes, but the free plan allows one active event type.

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

People get a Google Calendar link and an .ics file for the slot they sign up for, and can subscribe to a calendar feed that stays up to date. I'm In! doesn't read your calendar to block times the way Calendly does; the event is the schedule.

Can multiple attendees sign up for the same slot?

Yes, that's the whole point. Set the spots on each slot, and the page counts down what's left and can open a waitlist when it's full.

Is I'm In! a fit for sales call scheduling?

No. For 1:1 sales calls, stick with Calendly. Use I'm In! when you're the organizer and lots of people need to sign up.

Your next sign-up sheet takes about a minute.

Free for unlimited events and people. Add a title, a date, and the spots, then share the link.