Cal.com
Retool
| Feature | Cal.com | Retool |
|---|---|---|
| Pricing | Free / from $12/mo | Free / from $10/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.4 / 5 | 4.5 / 5 |
| Best For | developers, startups, agencies, privacy-conscious-teams | engineering-teams, operations, data-teams, startups, enterprise |
| Founded | 2021 | 2017 |
| Scheduling | ✓ | ✗ |
| Self Hosting | ✓ | ✓ |
| Api | ✓ | ✗ |
| Webhooks | ✓ | ✗ |
| Round Robin | ✓ | ✗ |
| Collective Scheduling | ✓ | ✗ |
| Embed | ✓ | ✗ |
| Drag Drop Ui | ✗ | ✓ |
| Database Connectors | ✗ | ✓ |
| Api Integration | ✗ | ✓ |
| Workflows | ✗ | ✓ |
| Rbac | ✗ | ✓ |
| Ai | ✗ | ✓ |
✓ 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
✓ Retool Pros
- Fastest way to build internal tools
- Connects to any database or API
- Self-hostable for security
- Pre-built components save hours
✗ Retool Cons
- Only for internal tools — not customer-facing
- Can get expensive for large teams
- Learning curve for complex queries
The Verdict
Cal.com is built for developers and startups, with a focus on scheduling and self-hosting. Retool targets engineering teams and operations and leads with drag-drop-ui and database-connectors.
Pricing is close: Retool starts at $10/mo versus $12/mo for Cal.com — not a deciding factor on its own.
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 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.