That's not the case any more. I could add my german bank, which is not n26.
Yes, it's only for payments in offline shops at the moment.
Mobile payment with Bluecode: contactless, secure and can be used worldwide. Pay by NFC, QR code or barcode - always in accordance with European standards.

This is an Austrian company that offers mobile payments with barcode/qr-code in shops in Austria and Germany, as well as in a few places in Italy and Luxembourg.
I use it since one year. It works fine, but it could definitely use more attention, so that more shops start to accept it. What are your thoughts on that?
You know that a lot of scientists in the US aren't even American. Because the USA used to be the world's best place to do science, that's why a lot of scientists moved there. These people are now moving in the opposite direction.