Stackby
Windmill
| Feature | Stackby | Windmill |
|---|---|---|
| Pricing | Free / from $5/mo | Free / from $10/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.1 / 5 | 4.4 / 5 |
| Best For | small-businesses, solopreneurs, budget-conscious-teams, non-technical-users | developers, devops-teams, internal-tools, data-pipelines |
| Founded | 2019 | 2022 |
| Api Columns | ✓ | ✗ |
| Column Types | ✓ | ✗ |
| Views | ✓ | ✗ |
| Forms | ✓ | ✗ |
| Automations | ✓ | ✗ |
| Pre Built Templates | ✓ | ✗ |
| Workflow Editor | ✗ | ✓ |
| Script To Ui | ✗ | ✓ |
| Scheduling | ✗ | ✓ |
| Approval Flows | ✗ | ✓ |
| Multi Language | ✗ | ✓ |
| Self Hostable | ✗ | ✓ |
| Audit Logs | ✗ | ✓ |
✓ Stackby Pros
- Very affordable pricing
- API column type for live data
- Pre-built templates for common use cases
- Good Airtable alternative
✗ Stackby Cons
- Smaller user community
- UI less polished than competitors
- Limited automation capabilities
✓ 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
Stackby is built for small businesses and solopreneurs, with a focus on api-columns and column-types. Windmill targets developers and devops teams and leads with workflow-editor and script-to-ui.
On pricing, Stackby is the clear winner for budget-conscious users — starting at $5/mo compared to $10/mo for Windmill. That $5/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.
Windmill edges out on user ratings (4.4 vs 4.1). While both are well-regarded, that gap reflects real differences in user satisfaction worth considering.
Feature-wise, Windmill offers broader built-in capabilities (7 features vs 6), while Stackby takes a more focused approach — which can mean a simpler, faster onboarding experience.
Bottom line: Windmill has a slight overall edge — but if very affordable pricing matters most to you, Stackby may still be the right call.