Open source app builder that runs as a desktop app instead of a cloud service. Free with your own keys, Pro adds bundled AI credits, code stays in local git.

Wix-owned app builder. Builds full-stack apps with a built-in database, auth, payments and hosting from a prompt. Billed by message credits, model selector from Builder up.

StackBlitz's app builder. Prompts, runs and edits full-stack web apps in the browser on WebContainers, with Bolt Cloud hosting, GitHub sync and Expo for mobile. Billed by tokens.

Builds web apps from a chat with a built-in backend called Cloud, Git sync to GitHub or GitLab, browser testing and desktop and mobile apps. Priced by credits, not seats.

Replit's agent builds, tests and publishes web and mobile apps from a prompt inside the hosted Replit workspace, with checkpoints, a real-browser tester and credits on paid plans.

Vercel's app builder. Generates and edits full-stack apps in a chat, runs them in a Vercel Sandbox and deploys to Vercel or opens a pull request. iOS app and MCP support.