iOS - Knowing app store country

Question

I want to know in my app (by code) in which app store my user is (like england / france / spain ect).

I already read that we can do this with the locale : https://developer.apple.com/documentation/foundation/nslocale/1643060-countrycode

But I would like to do it with the Apple Store. For legal purpose I don't want to display the same content for an european than for an american.

Has someone already done it ? Thanks !

Answer 1

If you're on iOS 13+, This will give you the 3 letter country code for the store:

import StoreKit

let country = SKPaymentQueue.default().storefront?.countryCode

More information on it's usage can be found in the SKStoreFront documentation.

UPDATE: Occasionally, this method returns nil, which is why storefront is an optional. So it's not 100% reliable. I was using with thousands of users, and it was working 95% of the time. I'm not entirely sure under what circumstances it is nil however.

Answer 2

From iOS13 SKStorefront class property countryCode can be used to get three-letter code representing the country associated with the App Store storefront.

For iOS version below 13 only viable solution was to get priceLocale from SKProduct.

Answer 3

You can't restrict IAP(so you don't have information about the Apple Store used) for specific country. What you can do is disable/enable items by checking country ID.

there are different way for check it, for me the best is by checking user carrier ID.

For example:

func checkCellularNumber() -> Bool {
    let networkInfo = CTTelephonyNetworkInfo()
    guard let info = networkInfo.subscriberCellularProvider else {return false}
    if let carrier = info.isoCountryCode {
        print("Carrier code = \(carrier)");
        return true
    }
    return false
}