In order for your website to be GDPR compliant when using our app, you must add (copy/paste) the following terms to your website's Privacy Policy:
"By using our website, you (the visitor) agree to allow third parties to process your IP address, in order to determine your location for the purpose of currency conversion. You also agree to have that currency stored in a session cookie in your browser (a temporary cookie which gets automatically removed when you close your browser). We do this in order for the selected currency to remain selected and consistent when browsing our website so that the prices can convert to your (the visitor) local currency."

ATTENTION. Please be aware that using our app or just adding the above text to your Privacy Policy, will not automatically make your store GDPR compliant. You will need to make sure at your end that your company is GDPR compliant under all aspects. If you need further consulting in regards to what you need to do to make sure your business is meeting the GDPR rules as well, Shopify has some really good guides.