What if it was possible to have a multi-currency account in which you can buy your Euros when it was at it was best, then collect interest on it. Since Mondo is getting a banking licence they can do this. It would operate with a multi currency purse and you can change your default currency on the app. This would mean Fees are cheaper when the Euro is weaker to the Pound. But also it allows people to hedge against currencies being printed or created at such a fast pace as they are now (QE) it makes sense that you should diversify what you own in currency.
@hugo could this be designed?