1. Volt makes storing bitcoin more secure by utilizing threshold signature, default personal wallet is a 2/3 scheme with key shares stored with user, Volt and a third party trustholder respectively.
2. Facial recognition + email combination is to ensure that only the original user can access/recover their accounts on new/different devices. email or facial scan is not equal to private key, nor does it generate private key.
3. Volt is not the only option, we can confidently say that Volt makes bi