give the possibility to send a card to another that uses the same app! for example, I have just downloaded the app to my wife and it would be very convenient for me to send a card to her without having to rewrite everything! A function like sharing apple contacts would be very convenient and would induce people in your family or circle to use the same app for convenience
Giovanni Ielapi commented
Potresti dare il tuo database a tua moglie, una volta dentro (con la tua password) lei può cambiarla e usufruire di tutti i tuoi dati.
Absolutely - I agree with Dario. Not only for sharing a card between family members, but I have a team of people who also need to have a card in their SafeinCloud to be able to have access to certain platforms online. So for professional use, this would be a great option to have.