from TFA's comments, > The German Bank "Commerzbank AG" (and others I think) uses a 3D Code for their Photo TAN process. It also looks quite nice, as they use

from TFA's comments, > The German Bank "Commerzbank AG" (and others I think) uses a 3D Code for their Photo TAN process. It also looks quite nice, as they use colored dots instead of squares. > You can see it here: https://www.corporates.commerzbank.com/portal/en/cb/de/firmenkunden/services/apps/phototan-15/photoTan.html https://www.corporates.commerzbank.com/portal/en/cb/de/firme... > It is read by their Android or iOS App, which then show the login or transaction details and generate a 7 digit confimation code. > I would not call that a niche market :-)