MQTT topics that have been defined in this app are monitored by the RadioShuttle MQTT push server. Upon activity, they are immediately forwarded to the app, which displays the message, accompanied by an audio signal, as a push notification.
The app manages push notification settings. It can also display all push notifications. After one-time setup, push notifications are automatically received, even if the app is not running. The app is the link between the RadioShuttle MQTT push server and the push services by Apple and Google.
RadioShuttle Push Notification