Cal.com vs Easy!Appointments
| Tagline | Scheduling infrastructure for everyone, the open-source Calendly alternative | 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 | TypeScript | PHP |
| License | AGPL-3.0 | GPL-3.0 |
| Self-host difficulty | 3/5 Moderate | 3/5 Moderate |
| Deploy options | One-Click 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.com
- Some enterprise features (e.g. SAML SSO, advanced admin/insights, certain platform features) are gated behind a commercial/EE license even when self-hosting.
- Self-hosting requires PostgreSQL plus configuring numerous environment variables and OAuth credentials for calendar integrations.
- The core code is AGPL-3.0, which imposes copyleft obligations on modified network deployments.
- Upgrades between major versions occasionally require manual database migration work.
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.com 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.
Cal.com
Scheduling infrastructure for everyone, the open-source Calendly alternative
Easy!Appointments
Self-hosted appointment scheduler for service businesses with provider and service management