We support lots of countries, including USA, Canada, Australia, UK and most of Europe (in your native currency). Here's the full list:
However we only support US English as the language for our checkout and dashboard systems.
What currencies can my customers pay in?
We integrate with our payment providers and so we support every currency which our payment providers offer.
If you use Stripe, see the list of supported currencies (based on your own location) here
For Paypal, check here.
For Braintree, it's here.
See our article about supporting multiple currencies here.