ActiveCampaign
Windmill
| Feature | ActiveCampaign | Windmill |
|---|---|---|
| Pricing | From $15/mo | Free / from $10/mo |
| Free Plan | ✗ No | ✓ Yes |
| Rating | 4.5 / 5 | 4.4 / 5 |
| Best For | ecommerce-businesses, saas-companies, marketing-agencies, small-businesses | developers, devops-teams, internal-tools, data-pipelines |
| Founded | 2003 | 2022 |
| Email Marketing | ✓ | ✗ |
| Marketing Automation | ✓ | ✗ |
| Crm | ✓ | ✗ |
| Sales Automation | ✓ | ✗ |
| Landing Pages | ✓ | ✗ |
| Sms Marketing | ✓ | ✗ |
| Predictive Sending | ✓ | ✗ |
| Workflow Editor | ✗ | ✓ |
| Script To Ui | ✗ | ✓ |
| Scheduling | ✗ | ✓ |
| Approval Flows | ✗ | ✓ |
| Multi Language | ✗ | ✓ |
| Self Hostable | ✗ | ✓ |
| Audit Logs | ✗ | ✓ |
✓ ActiveCampaign Pros
- Most powerful automation builder in email marketing
- Combined CRM and email in one platform
- Excellent deliverability rates consistently
- 800+ integrations with third-party tools
✗ ActiveCampaign Cons
- Steeper learning curve than simpler tools
- No free plan available
- Reporting could be more intuitive
✓ Windmill Pros
- Open-source and self-hostable
- Supports Python, TypeScript, Go, Bash, SQL natively
- Auto-generates UI from script parameters
- Excellent scheduling and workflow orchestration
✗ Windmill Cons
- Smaller community than Zapier/n8n
- Self-hosting requires infrastructure knowledge
- Less polished documentation for beginners
The Verdict
ActiveCampaign is built for ecommerce businesses and saas companies, with a focus on email-marketing and marketing-automation. Windmill targets developers and devops teams and leads with workflow-editor and script-to-ui.
On pricing, Windmill is the clear winner for budget-conscious users — starting at $10/mo compared to $15/mo for ActiveCampaign. That $5/mo difference adds up quickly for growing teams.
Windmill has a free plan, which gives it a meaningful edge for individuals and small teams exploring their options. ActiveCampaign requires a paid subscription from day one.
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.