Android – Localized Apps
https://play.google.com/store/apps/details?id=com.wiirecords.localizedapps
This app allows you to create shortcuts and choose which language each shortcut will use.
Extremely useful for people who like to use the phone in english and want to use a specific app on another language!
EXAMPLE: android system in english and run google maps in portuguese
The localization depends on the 3rd party app, this app will not translate it!
Android does not have support to launch applications on different languages. The workaround is to change the system language during the app execution.
You should use ISO639 languages (en, pt, fr, es, de, it, etc) and ISO3166 countries (US, BR, FR, ES, DE, IT, etc).