Cal.diy vs Easy!Appointments
| Tagline | Open-source online appointment scheduling built on Cal.com | Self-hosted appointment scheduler for service businesses with provider and service management |
| Category | Scheduling & Booking | Scheduling & Booking |
| Replaces | Calendly, Acuity Scheduling | Acuity Scheduling, Calendly |
| GitHub stars | 47k | 4.3k |
| Language | Nodejs | PHP |
| License | MIT | GPL-3.0 |
| Self-host difficulty | 3/5 Moderate | 3/5 Moderate |
| Deploy options | Docker Docker Compose Manual | Docker Docker Compose Manual |
| Managed hosting | ||
| Last updated | 7 days ago | 5 days ago |
| View repo | View repo |
Where each falls short
The honest trade-offs — what you give up with each, versus the proprietary tools they replace.
Cal.diy
- Self-hosted setup requires configuring PostgreSQL, email/SMTP, and OAuth providers
- Enterprise features (SAML SSO, workflows at scale, analytics) are cloud-only or require an enterprise license
- Payment collection integrations need additional third-party setup
- Admin UI for multi-tenant management is less polished than Calendly's hosted offering
Easy!Appointments
- No built-in payment collection at booking time, unlike Acuity/Calendly paid tiers.
- Calendar sync is limited to Google Calendar; no native Outlook/Office 365 or CalDAV support.
- The UI and admin experience feel dated compared to commercial products.
- Lacks advanced features like automated reminder workflows, packages/memberships, and intake form logic found in Acuity.
Bottom line
Both are a similar lift to self-host; choose Cal.diy for the larger community and ecosystem. Easy!Appointments has seen more recent development. Open each guide below for deploy steps and the full feature gap.
Easy!Appointments
Self-hosted appointment scheduler for service businesses with provider and service management