Cal.com
Clay
| Feature | Cal.com | Clay |
|---|---|---|
| Pricing | Free / from $12/mo | Free / from $149/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.4 / 5 | 4.6 / 5 |
| Best For | developers, startups, agencies, privacy-conscious-teams | sales-teams, growth-teams, agencies, outbound-heavy-companies |
| Founded | 2021 | 2017 |
| Scheduling | ✓ | ✗ |
| Self Hosting | ✓ | ✗ |
| Api | ✓ | ✗ |
| Webhooks | ✓ | ✗ |
| Round Robin | ✓ | ✗ |
| Collective Scheduling | ✓ | ✗ |
| Embed | ✓ | ✗ |
| Data Enrichment | ✗ | ✓ |
| Ai Research | ✗ | ✓ |
| Waterfall Enrichment | ✗ | ✓ |
| Outreach Personalization | ✗ | ✓ |
| Crm Integration | ✗ | ✓ |
| List Building | ✗ | ✓ |
| Ai Messaging | ✗ | ✓ |
✓ 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
✓ Clay Pros
- Aggregates 75+ data sources in one waterfall enrichment
- AI research agent writes personalized outreach copy
- Flexible spreadsheet-like interface for data manipulation
- Integrates with all major CRMs and sequencing tools
✗ Clay Cons
- Expensive for small teams (starter at $149/mo)
- Learning curve for advanced data workflows
- Credit system can be confusing to predict costs
The Verdict
Cal.com is built for developers and startups, with a focus on scheduling and self-hosting. Clay targets sales teams and growth teams and leads with data-enrichment and ai-research.
On pricing, Cal.com is the clear winner for budget-conscious users — starting at $12/mo compared to $149/mo for Clay. That $137/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 agencies — 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.