I Have enabled 2-step verification for my iCloud account and I use Outlook app for emails on my iPhone and my iPad. The app-specific password to enable Outlook to log into my iCloud email only works in one device at a time. For example, when I log into iCloud mail on iPhone, my iPad's Oulook app logs out and if I want to open iCloud email on iPad again, I need to react horse it with a new app password which then logs iPhone's Oulook app out of iCloud!
Is there any way to permanently authorise both devices' apps at the same time?