Your main currency is the default currency of your account, meaning the currency in which all your balances are displayed. Initially, you select your main currency when you set up your very first virtual card, after the verification process. Usually, people use the currency of their country of residence or the currency in which they earn their salary.
To change your main currency, follow those simple steps:
Tap the Profile icon located in the top left corner of the screen.
Tap on "App settings".
Tap on "Main currency" in the Appearance section.
Select one of the available currencies: EUR and USD.
FAQ:
Where can the main currency be used within IN1?
You pay for the premium subscription in your account's main currency.
Usually, this currency is selected as a default currency for operations.