You're not locked to one agent anymore. When you set up the desktop app, pick Claude Code or Codex. Same live simulator, same native feel, either model driving.
The part designers keep flagging: you build with the AI plan you already pay for. And most designers I talk to have their own Enterprise plans tied to their companies. Prototo never charges for AI use, so whatever subscription you've got is the only one you need.
Every design tool today puts AI on top of a canvas. Prototo removes the canvas. Describe a screen in plain language and it renders as a real native iOS app, not a webview mockup.
Prototo Desktop puts Claude Code and the iPhone Simulator side by side in one window. No terminal, no commands, no file to touch. Publish turns any prototype into a link. Recipients open it in the free Prototo app and the prototype runs natively on their own iPhone, real gestures, real haptics, real Liquid Glass.
