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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
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Google Opal
✓ verifiedFree
Google Labs experiment for building and sharing AI mini-apps from natural-language prompts, no coding required.
2.1M visits/mo
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Builder.io
✓ verifiedFreemium
Visual development platform with AI design-to-code, a visual editor and headless CMS so teams and agents ship UI in real code.
806K visits/mo
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Dyad
✓ verifiedFreemium
Free, local, open-source AI app builder that works with any AI model and exports real code you own, with zero lock-in.
245K visits/mo
Pricing
No public pricing
Free: $0 per user/mo (60 agent credits)
Pro: $24/user/mo (500 credits)
Team: $40/user/mo
No public pricing
Core features
- ✦Build AI mini-apps from natural-language prompts
- ✦Visual editor for prompt/tool workflows
- ✦Share created apps with others
- ✦No-code AI app prototyping
- ✦AI design-to-code (Figma to code)
- ✦Visual editor tied to your components
- ✦Headless/visual CMS
- ✦AI agents (Builder-Agent) that open PRs
- ✦Integrations: GitHub, GitLab, Bitbucket, Figma, VS Code
- ✦Roles, reviews and collaboration
- ✦Local-first, open-source app building
- ✦Works with any AI model or provider
- ✦Exports real, ownable code (no lock-in)
- ✦Supabase database, auth, and server functions
- ✦Built-in security review and fixes
- ✦Deploy to GitHub and Vercel; MCP server support
Use cases
- →Prototyping an AI workflow quickly
- →Sharing a custom AI mini-app
- →Automating a task with chained prompts
- →Convert designs to production code
- →Let non-developers edit pages visually
- →Manage content with a headless CMS
- →Collaborate across design, PM and engineering
- →Building full-stack apps with your own AI models
- →Prototyping without proprietary platform lock-in
- →Adding database and auth via Supabase
- →Deploying apps to GitHub and Vercel
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