It seems that Microsoft is discontinuing its stand-alone Cortana personal assistant applications for both Android and iOS in some regions according to the support pages on the Microsoft Australia, Canada, and UK websites. Microsoft has not yet made it clear whether the Cortana is being completely discontinued or whether it is just being closed in certain markets, although the markets listed are already a large slice of users.
The closure of the applications is due to Microsoft “integrating Cortana into your Microsoft 365 productivity apps,” to this end Microsoft will be ending support for the stand-alone applications early next year from January 31, 2020 onwards.
To make your personal digital assistant as helpful as possible, we’re integrating Cortana into your Microsoft 365 productivity apps. As part of this evolution, on January 31st, 2020, we’re ending support for the Cortana app on Android and iOS in your market. At that point, the Cortana content you created–such as reminders and lists–will no longer function in the Cortana mobile app or Microsoft Launcher, but can still be accessed through Cortana on Windows. Also, Cortana reminders, lists, and tasks are automatically synced to the Microsoft To Do app, which you can download to your phone for free.
After January 31st, 2020, the Cortana mobile app on your phone will no longer be supported and there will be an updated version of Microsoft Launcher with Cortana removed.