The login for the ATD Events app is not the same as your login for the ATD website. Attendees must create a separate login on the conference website here.
Once you create your login on the website and build your schedule, you should download the app on your phone or device and log in. The schedule you created on the website will then sync to the app.
Please note that the schedule you created will not sync from the app to the website (if created in the app). It will sync only from the website to the app.