What countries / currencies are supported?
Gift Up! supports any currency and any country. However, you are required to connect a payment account to Gift Up! so you can accept payments for the gift cards you sell. This is one of 3 currently: Stripe, Square & PayPal and each provider has different limitations on which countries they support.
PayPal are available in more than 200 countries/regions and support 25 currencies: https://www.paypal.com/uk/webapps/mpp/country-worldwide