The difference between localization and translation is subtle, and while all good translation should have an element of localization, they are not entirely the same. This question is made even more difficult because the industry's (tech) interpretation of localization has morphed into something quite different.
Current list of supported iOS languages: English (U.S.), English (UK), Chinese (Simplified), Chinese (Traditional), French, German, Italian, Japanese, Korean, Spanish, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, Greek, Hebrew, Hungarian, Indonesian, Malay, Norwegian, Polish, Portuguese, Portuguese (Brazil), Romanian, Russian, Slovak, Swedish, Thai, Turkish, Ukrainian and Vietnamese.
iTunes Connect Sales Reporting allows you to monitor where your app's sales are coming from. This information is useful both before and after your localize your app.
iTunes Connect (iTC) will automatically detect if your app ships with multiple languages. However, if you want to provide localized App Store descriptions, keywords and screenshots, you will need to set this up through the iTC interface.
There are several languages which have certain differences depending on where they are spoken. The classic example would be Spanish. Spanish is spoken in 20 different countries worldwide, each with their own regional twist on the language. Sometimes dialects are as simple to compare as British English is to American English, but other times the two dialects differ so greatly that one would not be so easily understood by the other.
It is possible to localize app names directly within Xcode and you do not need to create multiple versions of the same app. The great and wonderful InfoPlist.strings
Apple provide officially translated badges for localized app websites and other marketing materials related. The badges can be used to point users to the exact App Store URL.
If your App Store meta data contains currency information, remember to localize the currency according to the store you are targeting. Here is a list of current supported countries and their respective used currencies.
Separate Keywords in iTunes Connect iTunes Connect allows you to edit your App Store Description and Keywords for the iOS and Mac App Stores. You may enter up to 100 characters in this field as of March 2016. Separate your keywords with … Continued
There are times when you find yourself removing apps from the app store for whatever reason. iTunes Connect allows you to select and deselect certain stores, removing your app from sale. How to remove your app from certain or all app stores:
Keywords form part of the indexable metadata on both the App Store and Android Play Store. Here are the rules.
When deciding to localize your app, you need to be clear to the translator or localization agency who your target audience is. Is your app a game or social networking chat app? Or is it a financial stocks and shares tracker?