Integration with currency conversion apps

How does Frequently Bought Together integrate with currency conversion libraries and apps?

In order to facilitate app interoperability, Frequently Bought Together does two things:

Format the prices in the app as they are defined in your Shopify currency configuration (see https://help.shopify.com/manual/payments/currency-formatting for details)
Enclose all prices in a <span class="money"></span> HTML element, as it is a convention followed by several currency apps and themes in Shopify.

Apart from that, the responsibility of converting prices is outside our app scope, the currency conversion app should detect the price changes and convert them.