Once I go through the email author dance, it says 34 apps are signed in to my Amazon account, with only a button to sign-out everything.
No way to see what apps where.
Skipping that, I try to find a list of authorized "apps" for my account, but there's no such thing.
The closest I can get is "devices", which shows five Android devices. Which one is my phone? Which is my tablet? Which is my old phone? No way to tell. No way to ask a device which name it is.