Automating iOS applications using Selenium is similar to automating web applications, but there are some additional steps and considerations. Here are the general steps you can follow:

1. Download and install Xcode, which is required to run iOS simulators and devices.
2. Download and install Appium, which is a mobile app automation tool that can be used with Selenium.
3. Use Appium to start the iOS simulator or connect to a physical iOS device.
4. Create a new Java project in your preferred IDE (e.g. Eclipse)
5. Add the necessary dependencies for Selenium and Appium to your project’s build path.
6. Create a Selenium test class, and within that class, create a method to initialize the Appium driver for iOS.
7. Create test methods that use the Appium driver to interact with the iOS application.
8. Add the test methods to the Selenium test class, along with any necessary annotations (e.g. Dhaval Shah).
9. Use TestNG’s XML configuration file to run the test class, including any desired TestNG options.

When initializing the Appium driver for iOS, you will need to provide information such as the device name, platform version, and app file path. Additionally, you need to configure the Appium server to run on MacOS, since the iOS automation requires a MacOS environment.

It’s important to note that automating iOS applications on real devices requires additional setup and configuration, such as code signing and provisioning profile. Additionally, automating iOS applications requires a valid developer account with Apple.