301 Moved Permanently Server When you sign in to your Amazon account in a device, you will remain signed in unless you specifically sign out There are multiple ways to sign out of Amazon Prime from all other devices except the one you are using Amazon doesn't have a limit on the number of devices you can have on your Prime Video account Kindle's mobile apps for iPhone/iPad and Android do not have a "Sign Out" or "Logout" button Instead, users must "Deregister" their device Deregistering your device disconnects it from your Amazon account—you will no longer be able to make purchases through this account or view content purchased through this account
How To Switch Accounts On Amazon And Prime Video App