Run iOS Simulators and Android Emulators side-by-side on your Mac.

KittyFarm is a macOS app that lets you view and control multiple simulators and emulators from a single window. Touch input on one device can be replicated to all others simultaneously.

• Live display of iOS Simulators (via private SimulatorKit APIs — no screen recording permission needed) and Android Emulators (via gRPC)
• Touch replication across devices
• Device bezels rendered from Apple's CoreSimulator chrome assets and Android SDK skins
• Build & Play: build your iOS/Android project and deploy to all devices in parallel
• Drag-and-drop device reordering
• Proportional layout that scales devices to fill available space

• macOS 26+
• Xcode 17+
• Metal Toolchain component for Xcode
• Android SDK (for emulator support)
• XcodeGen

The Xcode project is generated from project.yml using XcodeGen:

Install the Metal Toolchain once if xcodebuild reports cannot execute tool 'metal' due to missing Metal Toolchain:

xcodebuild -downloadComponent MetalToolchain

Generate the main project and the embedded KittyProbe helper project before building:

cd KittyProbe && xcodegen generate
cd ..
xcodegen generate
xcodebuild -project KittyFarm.xcodeproj -scheme KittyFarm -configuration Debug build

MIT