I really hoped that this would work. Being able to use a pre-set library of template to give in a professional way personal messages, invites etc.
However, all the templates are in English and the text in the designs cannot be changed. There is an option to build / design your own card in Canva, and upload that in Cardclan, but what is then the value of the pre-set library. It is easier to mail the designed card right out of Canva by mail.
And more personal too, because the white label is not visible for the receiver of the card. They still see an URL in the cardclan domain, but for the receiver it is a value to see the URL of the sender.
So, the added value, ease of use, etc is not yet there for non-English people. That is a pity.