What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Unfortunately, you can only use 1 currency per payment form. However, you can have multiple payments in 1 form. So you can create another form with a different currency and then embed it on the current form. Please refer to this guide: http://www.jotform.com/help/161-How-to-Update-the-Multiple-Payment-Form
You can also use these widgets:
Currency Picker - http://widgets.jotform.com/widget/currency_picker
Currency Converter - http://widgets.jotform.com/widget/currency_converter
Hope that helps. Thank you.