Cal.com
Flowise
| Feature | Flowise | |
|---|---|---|
| Pricing | Free / from $12/mo | Free / from $19/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.4 / 5 | 4.2 / 5 |
| Best For | developers, startups, agencies, privacy-conscious-teams | developers, startups, non-technical-users, ai-teams |
| Founded | 2021 | 2023 |
| Scheduling | ✓ | ✗ |
| Self Hosting | ✓ | ✗ |
| Api | ✓ | ✗ |
| Webhooks | ✓ | ✗ |
| Round Robin | ✓ | ✗ |
| Collective Scheduling | ✓ | ✗ |
| Embed | ✓ | ✗ |
| Visual Builder | ✗ | ✓ |
| Llm Chains | ✗ | ✓ |
| Ai Agents | ✗ | ✓ |
| Rag | ✗ | ✓ |
| Self Hosted | ✗ | ✓ |
| Open Source | ✗ | ✓ |
| Multi Agent | ✗ | ✓ |
✓ 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
✓ Flowise Pros
- Visual drag-and-drop for rapid prototyping
- Flexible model choice across LLM providers
- Self-hosting for full data control
- 100+ built-in nodes and connectors
✗ Flowise Cons
- Complex flows hard to debug at scale
- Enterprise features locked behind paid tiers
- Documentation quality inconsistent
The Verdict
Cal.com is built for developers and startups, with a focus on scheduling and self-hosting. Flowise targets developers and startups and leads with visual-builder and llm-chains.
On pricing, Cal.com is the clear winner for budget-conscious users — starting at $12/mo compared to $19/mo for Flowise. That $7/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.
Both tools are a solid fit for developers, startups — in those cases, the decision often comes down to workflow style and how your team prefers to organize work.
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.