iOSAppStoreCountry property
Only affects iOS App Store lookup: The two-letter country code for the store you want to search. Provide a value here if your app is only available outside the US. For example: US. The default is US. See http://en.wikipedia.org/wiki/ ISO_3166-1_alpha-2 for a list of ISO Country Codes.
Implementation
final String? iOSAppStoreCountry;