iTunes connect Arabic localization

They just put their arabic description under 'English'. ITC says that it has to be in English, but I have 2 applications in the App Store with all the information in Polish.

Just put this info in Arabic, Apple will not reject your app because of that.

Unfortunately, Apple keeps a weirdly different list of languages for the App Store and for the iOS app itself. You can localize your app into Arabic, but the iTunes description cannot be. The best method is to paste it into the English description and use it for all languages.

You can see a complete language list for iOS and the App Store, which explains which languages are available on each, here:

http://www.ibabbleon.com/iOS-Language-Codes-ISO-639.html

Arabic is the last on that list, marked as Yes for iOS, and No for App Store.

The answers works great, but what if my app is bilingual (english, arabic), what do you think is the best thing to do? I think the best solution is to set the arabic language instead of any other language except for english, and set it as a primary language.

The Arabic language has been added to App Store Connect.