The new release of the inbro powered iOS app has been upgraded to support Apple's 'interactive notifications' feature.
Just swipe down from a new inbro notification so see a 'Download' button.
Touching 'Download' opens the app and automatically starts the download - there's no more for the user to do.
When the notification appears on the device's lock screen, the download button is available as an option on swipe.
(Thanks to Avalon Cruises, their app is available here: .