If you build iOS apps, you know the rhythm: write code, switch to Xcode, wait for the build, tap through the simulator, spot the bug, switch back, repeat. Anthropic just closed that loop. As of today, July 21, 2026, Claude Code Desktop can open, run, and interact with your app directly inside the iOS Simulator, without you ever leaving the conversation.
The feature is a new iOS Simulator pane. When you ask Claude to build, run, or check your app, the pane opens automatically next to your chat and streams the simulator's screen live, so you can watch Claude tap through your onboarding flow, install a build, or verify a bug fix in real time. It's interactive too: you can tap and swipe on the device yourself, use standard simulator shortcuts, switch between devices, and save a screenshot or recording. Because it drives the simulator directly, it skips the macOS permissions that Claude's other screen control tools need. Each session gets its own simulator, and you can have up to four panes open at once.
The real value isn't just watching Claude work, it's that Claude can now close its own feedback loop. Instead of writing code and telling you it should work, Claude can build the app, launch it, tap through the flow it just changed, and catch its own mistakes before handing things back to you. That's a real shift from "AI that writes code" to "AI that verifies its code actually runs."
You stay in control throughout. The first time Claude touches a simulator, the app asks for one time permission. Opening a URL on the device or running a build always follows your session's permission settings, since those actions can move data or execute scripts. Screenshots Claude takes are sent to Anthropic and retained under your normal conversation settings, so it's worth avoiding real logins on a simulator Claude is driving.
This is a public beta, live today in Claude Code Desktop on macOS for Pro, Max, and Team plans. You'll need Claude Desktop v1.24012.0 or later and Xcode with the iOS platform installed, and it only works in local sessions, not cloud or SSH. It's simulator only for now, so testing on physical devices still means going through Xcode yourself.
If you're already using Claude Code for iOS work, it's worth updating for right away. If you're on Windows, Linux, or working purely in the cloud, keep an eye on whether the pane expands beyond local macOS sessions.
For full setup steps and troubleshooting, see Anthropic's docs: Test iOS apps in the simulator.