You have in the IDE a "Compiler > Create App" menu, that brings you to a tabbed interface: "Web App | iOS | Android". Creating a Web App produces an HTML file, JS file and libraries directory; creating an Android APK requires Apache Cordoba (and Windows, currently); the "iOS" interface could get you close to the result (though I do not know if it follows the PWA idea closely, i.e. including manifest and service worker). Have you tried it?