CamerAlert for iOS has now been updated in the Apple AppStore to v1.3.8. This version fixes the background audio issues that were present in the 1.3.6 update.
Also, to get CamerAlert to show in the Notification Centre settings you need to have passed a camera with app in the background for it to ‘trigger’ a notification. Once this has happened you can change the notification type to the recommended ‘Alert’ type. This will stay on the screen until you pass the camera or you manually close it. We are looking into how to resolve this so the app appears in the settings from the outset. However once the app has been shown in the Notification Settings it will stay in there.