No news on the MyTriumph app yet (apparently due late 2019), but the 'development' version of a Tracker app is still available on the Google Play Store. Called Track+ it is for the exclusive use of customers of the Triumph Track+ Tracking & Management System and Triumph Track+ tracker devices must be installed.
Scorpion Automotive, a British vehicle security company, are apparently developing a tracker system for Triumph using their Scorpion Track technology. Combining a tracker device, phone app, and web portal access this will be a Triumph branded offering to help keep your bike secure.
The tracker will monitor the vehicle when it isn't being ridden by you and you will be alerted as soon as it is moved by email or text. Then you will be able to monitor where your bike is being taken, and even if the ignition is on or not, down to a specific address to allow you to call in the Police to help recover it.
The app was last updated in January 2019 so we're not sure if this project is still ongoing or if it has been shelved. No doubt we'll get to find out in time.