Reference Docs
The mobile app covers the things you need away from a desk: checking what's next, capturing a task before you forget it, and checking in on habits.
Mobile is deliberately not a full port of the dashboard. Planning a week, reviewing performance and administering an organization are desk activities; capture and check-in are not.
Use it to:
The same hosted sign-in page as every other platform.
As on desktop, plan changes and cancellations are handled in the browser, never natively in the app.