Hello,
DoCast: Chromecast from iPhone is definitely a great third-party app that offers a wide range of advanced features for screen mirroring and streaming to Chromecast. It supports various media file types, provides excellent quality and has a user-friendly interface. You can broadcast not only the screen but also individual media files. Moreover, it is compatible with most Chromecast devices. Try this app for a feature-rich experience. You can find it on the App Store. I am sure it will simplify your life and use of your smartphone and TV.