Cal.com vs Easy!Appointments vs LibreBooking vs Seatsurfing
Shared dimensions
| Tool | Best evaluation lane | Coverage status |
|---|---|---|
| Cal.com | Hosted tour and appointment scheduling | Partial |
| Easy!Appointments | Focused appointment scheduling | Partial |
| LibreBooking | Resource reservation | Partial |
| Seatsurfing | Workspace and desk reservation | Partial |
Edition check, October 23, 2026: Cal.diy is a separate MIT-licensed community edition. Its maintainers recommend personal, non-production use; do not treat it as an equivalent production alternative to hosted Cal.com. The hosted service has free individual and paid team plans.
For LibreBooking, use 7.1.0 or later: its critical October advisory warns that earlier versions permit unauthenticated account takeover.
Operator profiles
Sales teams should test Cal.com or Easy!Appointments for tour scheduling. Operations teams should test LibreBooking for shared resources and Seatsurfing for desk-oriented use. None is assumed to be a complete coworking membership or billing platform.
Task coverage
Compare availability rules, request/approval flow, conflicts, recurring use, cancellations,
notifications, check-in expectations, and audit needs. Coverage is partial until a real tour, room,
or desk scenario is tested.
Human work remaining
Staff define availability, approve exceptions, resolve conflicts, handle accessibility and visitor needs, maintain resources, and follow up on no-shows.
Technical difficulty
Managed scheduling is low-to-moderate; self-hosting is moderate. Calendar credentials, email delivery, time zones, reverse proxies, upgrades, and mobile testing increase effort.
True-cost categories
Count hosting or subscription, email/SMS, calendar administration, identity, setup, support, monitoring, backups, upgrades, custom workflows, and staff conflict resolution. Exact prices and free limits are not established.
Portability
Pilot exports of resources, users, reservations, custom fields, and history. Calendar events alone may not preserve booking policy or audit context.
Integrations and verification caveat
Calendar, identity, webhook, email, and payment integrations are partial until edition, direction,
field mapping, retry behavior, and current official documentation are verified. A connector name is
not proof of a supported coworking workflow.
Security
Protect calendar tokens and attendee details, minimize visitor data, separate administrators, review public booking exposure, and test account removal. Self-hosters must patch and restore the service.
Licensing
The projects use different open-source/open-core models. Verify the current repository license, edition boundaries, trademarks, and hosted-service terms before deployment.
Maintenance
Maintain resources, schedules, holidays, notification delivery, calendar connections, backups, and conflict runbooks. Re-test daylight-saving and time-zone behavior.
Scenario recommendations
- Use an appointment-first candidate for prospect tours.
- Use a resource-first candidate for rooms or equipment.
- Use a desk-first candidate for flexible seating.
- Run separate pilots if the operator needs more than one lane.
Do not use when
Do not treat these tools as a membership ledger, access authority, or billing system without a separately verified design. Avoid deployment if staff cannot recover from double bookings manually.
Verification
Verified on 2026-07-18. Edition-specific features, prices, free limits, and integrations are
partial or not established.