Of the AI App Builder tools rated on AI Tier List, 8 can be used for free — ranked here by our tier ratings. 0 are fully free and 8 offer a free plan (freemium). The top-rated free pick is Bubble (Tier A).
A visual no-code platform with AI features for building web applications without writing code.
Strengths: Powerful no-code web app development, Integrated AI features, Extensive plugin ecosystem, Visual development environment, High customizability
Full reviewAI-powered visual app builder for Flutter mobile and web applications.
Strengths: Visual development environment, AI code generation and QA support, Flutter ecosystem integration, Custom code and architecture control, MCP support
Full reviewNo-code platform for building AI-powered business apps from spreadsheets.
Strengths: No-code development, Multi-AI model routing, Easy spreadsheet integration, Rapid app deployment, User-friendly interface
Full reviewNo-code platform for building mobile and web apps with drag-and-drop components.
Strengths: Easy to use, drag-and-drop interface, AI-powered app generation, performance auditing tool (X-Ray), supports mobile/web apps
Full reviewAI website builder that quickly generates business websites from a description.
Strengths: Rapid website generation, AI-powered content and design, no technical knowledge required, small business friendly, instant online presence setup
Full reviewAI-powered full-stack web application builder.
Strengths: Natural language-based full-stack app generation, enterprise governance features, built-in AI model support, rapid prototyping, SEO and search optimization capabilities
Full reviewAI-powered website builder converting designs to code.
Strengths: AI-powered design-to-code conversion, Drag-and-drop editing, Multi-framework support, Productivity boost, Production-ready code output
Full reviewA backend platform for the age of AI.
Strengths: Accelerates AI app development, Reduces backend setup time, Easy AI feature integration, Improves developer productivity
Full review