On the Mac and Windows the 'desktop app' is more than just a shortcut to the website. Some languages, such as English, have multiple dialects. Turn on Dictation and choose from these Dictation options: Choose whether to use Enhanced Dictation, which lets you use dictation when you're not connected to the Internet. Choose Apple ( ) menu > System Preferences, click Keyboard, then click Dictation. Speakable items comes with many automatic actions but will need to be customized to insert text into a document.
Click on the 'Speakable Items:' On button, then click on the 'Open Speakable Items Folder' button. Open the Speech preference pane in System Preferences.