i got this app as one of the first results when i looked 2fa up on mac appstore.
the app is available for the entire apple ecosystem including the watches.
it's a 2 factor authenticator that syncronizes with icloud if you get the premium subscription, meaning that you'll never lose your accounts as long as you keep your apple id.
the app is mostly accessible with voice over, though the first buttons from the corners which are the settings and notifications aren't labeled.
you can try it right here.
sorry for posting this in this forum, but the thing is that there's no forum for the apple ecosystem apps.