Cal.com
Kestra
| Feature | Cal.com | Kestra |
|---|---|---|
| Pricing | Free / from $12/mo | Free / from $100/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.4 / 5 | 4.4 / 5 |
| Best For | developers, startups, agencies, privacy-conscious-teams | data-engineers, devops-teams, backend-developers, workflow-automation |
| Founded | 2021 | 2020 |
| Scheduling | ✓ | ✓ |
| Self Hosting | ✓ | ✗ |
| Api | ✓ | ✗ |
| Webhooks | ✓ | ✗ |
| Round Robin | ✓ | ✗ |
| Collective Scheduling | ✓ | ✗ |
| Embed | ✓ | ✗ |
| Workflow Orchestration | ✗ | ✓ |
| Event Triggers | ✗ | ✓ |
| Plugins | ✗ | ✓ |
| Monitoring | ✗ | ✓ |
| Secret Management | ✗ | ✓ |
| Multi Tenant | ✗ | ✓ |
✓ Cal.com Pros
- Open-source and self-hostable
- Unlimited event types on free plan
- Full API and webhook access
- White-label and embed options
✗ Cal.com Cons
- Self-hosting requires technical setup
- Fewer integrations than Calendly
- UI less polished than Calendly
✓ Kestra Pros
- Open-source with full orchestration capabilities
- Declarative YAML workflows (GitOps friendly)
- 500+ plugins for data, cloud, and messaging services
- Real-time triggers, schedules, and event listeners
✗ Kestra Cons
- Less visual builder than no-code tools
- Learning curve for YAML workflow syntax
- Newer platform with smaller community than Airflow
The Verdict
Cal.com is built for developers and startups, with a focus on scheduling and self-hosting. Kestra targets data engineers and devops teams and leads with workflow-orchestration and scheduling.
On pricing, Cal.com is the clear winner for budget-conscious users — starting at $12/mo compared to $100/mo for Kestra. That $88/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.