brew install --cask radishsoftware/tap/mobster-appmobster-app is Mobster for Mac: it lets AI use a real iPhone over USB, or an iOS simulator, from an Apple silicon Mac. The cask installs the signed, notarized Mobster.app from the releases, and the app updates itself. Your coding agent gets Mobster's MCP server from the app: Settings › Connectors › Use Mobster from… › Add.
The mobster cask is the Mobster CLI 0.3.0. The CLI is now part of Mobster for Mac, so that cask is deprecated and points to mobster-app. A mobster you installed with it keeps working.
Docs are at docs.mobster.dev. Get help at mobster.dev/support.