I'm not sure if it's already available, however, I wonder if there's an option to have it sent to my email address instead of having it on the mobile app. Currently, I need to carry that single device that is already registered with a token. If I can receive it on email, it would be more flexible. I'm using other types of authenticators, and some of them provide a code to access the application. I'm not sure if that's already available, as I am not using it at the moment. If it's not there, it could be a nice feature to have optionally.
