SPOD currently has three currency clusters. The actively supported currencies, the passively supported currencies and the unsupported currencies.
SPOD is currently actively supporting USD ($) only. All prices that you can see in the backend are based on tis currency. The passively supported currencies are currencies where we provide prices in the backend and for the Customizer in the frontend. These prices are based on an daily exchange rate. This includes currencies as CAD, EUR, GBP, DKK, PLN, CHF, SEK, AUD.
The unsupported currencies are the currencies we do NOT provide any exchange rates or localized prices for.
We are working on extending the list of passively supported currencies in the future.