You can't directly select the Simulator app because it's inside the Xcode.app package.Open the dropdown of applications that can be launched and choose Other.Select Actions > Library > Utilities > Launch Application.You can get it to launch via spotlight if you create an Automator launcher for it: Which would mean you could start the iPhone Simulator from the command line with one easy-to-remember word: $ simulator (Xcode 7+): $ alias simulator='open /Applications/Xcode.app/Contents/Developer/Applications/Simulator.app' (Xcode 6+): $ alias simulator='open /Applications/Xcode.app/Contents/Developer/Applications/iOS\ Simulator.app' (Xcode 6+): $ ln -s /Applications/Xcode.app/Contents/Developer/Applications/iOS Simulator.app ~/DesktopĪs pointed out by you could also add an alias to your ~/.bash_profile: $ alias simulator='open /Applications/Xcode.app/Contents/Developer/Platforms/atform/Developer/Applications/iPhone\ Simulator.app' You could create a symbolic-link from your Desktop to make this easier: $ ln -s /Applications/Xcode.app/Contents/Developer/Platforms/atform/Developer/Applications/iPhone\ Simulator.app ~/Desktop (Xcode 6+): $ open /Applications/Xcode.app/Contents/Developer/Applications/iOS Simulator.app Assuming you have Xcode installed in /Applications, then you can do this from the command line to start the iPhone Simulator: $ open /Applications/Xcode.app/Contents/Developer/Platforms/atform/Developer/Applications/iPhone\ Simulator.app