Side by side
Base44 vs Fusion by builder.io
Compare what each tool does, what it costs, and how it fits your workflow.
Designed for
Let’s make your dream a reality. Right now.
Visually generate production-ready web apps with AI.
Primary task
Vibe coding
Vibe coding
Pricing
Freemium · Free + from $16/mo
Freemium · Free + from $24/mo
Pricing details
Free + from $16/mo
Free + from $24/mo
Billing cycle
Monthly
Monthly
API access
Not documented
Not documented
Platforms
Web
Web
Integrations
Make, MCP
Slack, Figma, Jira
Source rating
4.5 / 5 · 27 ratings
No rating recorded
Catalog views
212k
103
Estimated monthly traffic
15M
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Catalog imported
31 Aug 2026
30 Aug 2026
Listed strengths
- No code required
- Instant apps setup
- User-friendly interface
- Accessible to non-tech users
- Built-in backends
- Streamlines development and design
- Plugs into existing codebase
- Leverages existing components, styles, APIs
- Visually generates and edits content
- Real-time UI building
Listed limitations
- No offline availability
- Dependent on natural language accuracy
- Possible high cost for upgrades
- Unclear about specific app types supported
- Scalable pricing ambiguity
- Relies heavily on Figma integration
- No standalone functionality
- May not support all design/file types
- Limited to specific frameworks
- Potential privacy issues with design code integration