Cal.diy vs QloApps
| Tagline | Open-source online appointment scheduling built on Cal.com | Open-source hotel reservation and channel management system |
| Category | Scheduling & Booking | Scheduling & Booking |
| Replaces | Calendly, Acuity Scheduling | Acuity Scheduling, Calendly |
| GitHub stars | 46k | 14k |
| Language | Nodejs | PHP |
| License | MIT | OSL-3.0 |
| Self-host difficulty | 3/5 Moderate | 4/5 Involved |
| Deploy options | Docker Docker Compose Manual | Docker Manual |
| Managed hosting | ||
| Last updated | 2 days ago | 6 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
QloApps
- Scope is hotel-specific; not a general-purpose appointment scheduler
- Channel manager integrations (OTA sync) are limited compared to commercial PMS solutions
- Mobile app for guests/staff is absent out of the box
- PrestaShop heritage makes theming and customisation non-trivial
Bottom line
Choose Cal.diy if you want the lower-effort setup; choose Cal.diy for the larger community and ecosystem. Cal.diy has seen more recent development. Open each guide below for deploy steps and the full feature gap.