Hello, thanks for taking the time to post your issue.
Visit this third-party site that shows Chromecast apps for
iOS. Purchase and install apps at your own risk. Apps may offer free trials and in-app purchases for you to consider purchasing.If you're having issues primarily with the app you described in your post, try deleting and reinstalling the app and rebooting your casting device, router, and Chromecast. If the issue persists after completing these steps, please reach out to the app's help desk for further assistance
-from JamesM(Product Expert)
