Empty results in iTunes Store Search API

Question

I am using iTunes Store Search API and I want to retrieve the app info by app id. The problem is that for some apps and some country codes API returns empty results.

For example:

https://itunes.apple.com/lookup?id=591764200&country=de - returns full info https://itunes.apple.com/lookup?id=591764200&country=us - does not return info

Can it be somehow connected to sale territories limitations?

Answer 1

yes, if the app is not available or not for sale in that country, it won't be in the result list.

UPDATE 1: i took another look at it: the app is actually a bundle that contains 4 apps, from which only 2 are available in the US (Merry Cook HD and Space Bridge HD) and two are not available (Mysteries of the Ocean HD and Where Are My Eggs? HD)