The iPhone on the right of Prototo is a real iOS Simulator, running your prototype live. Prototo runs it for you in the background, so there’s no separate Simulator window to manage.

Screenshot

Get to the screen you want, then press ⌘⇧4, then Space, and click the iPhone preview. macOS saves a picture of it to your Desktop, ready for Slack, Figma, or slides.

Record a clip

Click Record in the top right, tap through your prototype, and click it again to stop. Your clip opens in Studio, wrapped in a 3D iPhone you can angle and export. See Record and wrap.

Show where you tap

The round touch cursor on the preview shows exactly where you click, which helps when you present. Turn it on or off with View › Show Touch Cursor. It only appears in the live preview: recordings capture the phone screen itself.

Full screen

Use the full-screen button in the toolbar under the iPhone to give the preview the whole window, for presenting or a closer look. Press Esc to get the agent back.

If the preview stops responding

If taps stop landing but the picture keeps moving, choose View › Restart Preview. Your prototype comes straight back. More fixes in Troubleshooting.