The new Google Tasks app & service will become a core service of G Suite later this month. Tasks, as you may recall, is a replacement for setting up tasks in Google Calendar and has a stand alone app for both Android and iOS. Google has announced that starting June 28th that Tasks will be an on-by-default service in G Suite.
The change makes sense in that Google is trying to get everyone to move over to Tasks instead of using the task settings in Google Calendar, despite the fact that Google Tasks is still limited when you compare it to the old reminders feature in Calendar. Tasks, for example, won’t let you setup recurring tasks while you can do that in reminders in Calendar.