Are Web Push Notifications and Push Notifications the same? Can I send Web Push notifications / Web Notifications to my WebViewGold app?

There is an essential difference between Web Push / Web Notifications and the native Push Notifications of iOS and Android; these are controlled differently (namely by the services of Apple and Google). In WebViewGold, OneSignal, Firebase, and Bubble can be used to send the push notifications, but make sure that you have not (only) configured for the “Web Push Notifications”, but also the native “Push Notifications (iOS/Android)”. For details on the setup, see Firebase/OneSignal websites and the WebViewGold documentation.