Snappy Checkout is able to collect payments in the following currencies: AED, AUD, CAD, DKK, EUR, GBP, USD, and ZAR.

If collecting payments via Stripe, you'll need a bank account in the country where your currency applies. For example, if you're collecting payments in CAD, you'll need to have a bank account in Canada. Otherwise, Stripe will charge an additional 2% fee to convert the currency from CAD to the currency in the country where your bank is located.

Note: If you're collecting payments in multiple currencies and you have a bank in each country, you'll need to log into your Stripe dashboard and add a bank account for each currency in the "Account settings" --> "Transfers" section.
Your customers can purchase your products from any country — as long as their bank allows international transactions. When paying from other countries, your customers may incur a “foreign transaction” fee for your business being based in another country. That all depends on the policies of their bank though.