If a magnetic card is supposed to only contain an address, I think QR-based solutions will be more convenient.
Maybe you can use RFID tag for that purpose. Magnetic cards are so eighties

Yes but it is the cheapest to integrate which means maximum merchant adoption. Moreover, we feel that QR is the future if integrated properly and securely. QR is literally free and everyone has a phone that can display a photo, doesnt require any postage and is instant.
RFID will be the most difficult to propagate. I think banks also tried integrating RFID into cards but its not as widely accepted. I might be wrong.
This is really fascinating. How do I actually purchase a Nuevocard? The only thing I could find on the website was subscribe to the mailing list.
Its not yet launched. You will be informed as soon as we are ready to launch.