You do not need to do anything to integrate it into your application - any UITextField or UITextView that the user inserts into the keyboard, and it has a microphone icon to the left of the space. The user picks it up, makes its conversations and picks it up again. Speech to text is performed by Apple servers, so it takes a few seconds, and maybe longer, when a slow connection occurs. While this is happening, three violet colors are displayed in the text box to indicate that the text is in question. They are then replaced with text that is returned from Apple. Please note that if you do not have a network connection (for example, Wi-Fi is off, airplane mode or no mobile signal), the button will be removed from the keyboard. Therefore, just note that you do not have access to the text replica when it is disabled.