Why on iphone simulator the pcurrencycode is always USD?

As per subject, I am testing revenue cat integratoin on the ios simulator, but the prices are only showed in USD currency code.

Any idea? My app is availble in multiple language or country. It is a limitation of the simulator and then on real device in production will be ok? In such a acase how revenue cat will know the price? Myabe did I miss configuration on Apple side? 

Thanks for any support.

Here a sample if what I get rom the revenue cat api:

 LOG  {"identifier": "$rc_monthly", "offeringIdentifier": "base", "packageType": "MONTHLY", "product": {"currencyCode": "USD", "description": "Remove Ads", "discounts": [], "identifier": "01_month2", "introPrice": null, "price": 2.9899999999999998, "priceString": "$2.99", "productCategory": "SUBSCRIPTION", "productType": "NON_CONSUMABLE", "subscriptionPeriod": "P1M", "title": "1 Month"}}
 LOG  {"identifier": "$rc_three_month", "offeringIdentifier": "base", "packageType": "THREE_MONTH", "product": {"currencyCode": "USD", "description": "Remove Ads", "discounts": [], "identifier": "3_months2", "introPrice": null, "price": 3.9899999999999998, "priceString": "$3.99", "productCategory": "SUBSCRIPTION", "productType": "NON_CONSUMABLE", "subscriptionPeriod": "P3M", "title": "3 Months"}}
 LOG  {"identifier": "$rc_six_month", "offeringIdentifier": "base", "packageType": "SIX_MONTH", "product": {"currencyCode": "USD", "description": "Remove Ads", "discounts": [], "identifier": "6_months2", "introPrice": null, "price": 4.99, "priceString": "$4.99", "productCategory": "SUBSCRIPTION", "productType": "NON_CONSUMABLE", "subscriptionPeriod": "P6M", "title": "6 Months"}}