What methods can you use to run and launch an application in practice?

There are several ways to launch an iOS application:

• Via Xcode:
  • Click the "Run" button (Cmd + R) in Xcode, and the app will compile and launch on the selected simulator or connected device.
• On a real device:
  • Install the app through Xcode on a device connected via USB.
  • Use TestFlight for distribution and launching the app on users' devices.
• Via command line:
  • Use xcodebuild to build and launch the app.
  • To launch on a simulator, you can use simctl (part of xcrun), for example:

xcrun simctl install booted /path/to/app.app
xcrun simctl launch booted com.example.app

• Automated tools:
  • Use CI/CD systems for building and deploying the app.

In practice, Xcode is most often used for launching and debugging, while TestFlight or third-party tools are used for distribution.