How to change the currency in this app, overall?

Hi Irfan! I understood your question as "how to convert the currency with the CurrencyFair app" - correct me if i'm wrong. If you are looking for currency conversion, you can do it through CurrencyFair's website here.

Scroll to somewhere around the middle of the page and you should see a tool like this.

You can use this tool to convert currencies and take a look at how much the recipient would get after taking into account their fees. Hope this helps!​​​