Registration of a new user without password like in only using email + biometrics

Hello, is it possible to use “passwordless” registration and login of users so that the registering user never has to fill in any password but instead can just verify using his biometrics (and email) like in this example ?

I want to to implement Auth0 into mobile app (Android and iOS) in a way that user doesn’t need to fill in any password from start and can instead just use his email and biometrics saved in a phone to register and authenticate later. Is this currently possible? If so, how?


Did you find a solution for this? I’m also trying to see if it’s possible to have biometrics enabled for mobile apps without any authenticator.