It takes a couple of seconds to sign up SAU App for Mac, and you only need an email address. And your account will be the same for every device. Just try! It is fast and simple.
Use your login (the same login for your email) and password to sign into SAU on any device and in any browser. You just need one account for all apps. Don't worry if you forgot your password. Recovery won't take more than a minute.
My profile is the one and only place where all your personal data, configurations, notification, and email settings are located.