It’s a really terrible app … the notifications work just fine but opening the app or clicking on the notification brings you to the Sign Up / Login page … despite having my info / data saved and the app set up for Face ID. Sometimes the app will let you press the login button and it will, log in, after 20 seconds or so. More often than not, the login / sign up buttons don’t function and you can login by hitting the settings gear icon. Once logged in , the shipments that are on their way, as indicated by the notification one has received don’t populate or when selected you receive an error message along the lines of “that info is be available no”