Hello! I’m not sure if this has been posted on here before, but I’ll share my idea regardless. I work in the Martime industry and visit many countries around the world on a regular basis. I think it would be quality if there was an in app exchange rate, where you can just look up the details rather than wait till a purchase has been made.
I think the current method where you are redirected to Mastercards website is a little slow and clunky. Where a sleak top 10 currencies (£,€,$ etc.) can be quickly accessed and then you get a “See more” option where a longer list drops down or a “scroll” button with the country you’re looking for and it compares that currency to your “Home currency” for quick conversions.
I also think that you should have a little map of the world for travelers/explorers and when a card is used in that country it marks it off the map. Would be really fun.