[Moter8]

Hello! Have you tested out semi-transparent cards (N26, ING) or vertical cards?

https://www.tide.co/blog/a-card-designed-around-you

Bonus weirdness for tide cards: Name, credit card number, signature and cvv are all on the back, haha

Some Bank in Spain gives out vertical cards too, someone I know has one.

[Moter8]

Also: Are Maestro cards supported? Girocards (EC cards)?

Most Germans have a girocard, way less hava got a debit/credit card.

[lennyevans]

Yup, we haven't seen an issue with semi-transparent cards or maestro cards and have built-in support for the vertical cards as well (though we're still trying to optimize the UI/UX for that so let us know if you have ideas!). We don't support girocard yet, but we're working on adding support for that.