If you’re wondering how to download apps you previously bought after moving to a country with a different version of the Apple App Store, here’s some crucial info.
Basically, when you navigate to the app you’d like to download in the App Store, it will appear as if you need to buy it again. Click buy. You will then get a message that says you’ve previously purchased the app in a different store and so no payment is necessary. You can now download the app.
It’s a really shitty interaction (as is the whole idea of geographic content restrictions to begin with in the context of the internet) because you have to go out on a limb and click buy on something with no assurances you won’t be charged for it.
Apple should really fix this.