How can I localize app icon and icon text?

I’m making a game and I would like to use different app icon/icon text for each device with different languages. For example, if a device is in english, a english icon+icon text appear; if in portuguese, a portuguese icon+text appear. Is that possible? How? (Android and iOS).

load the assets from different folders in resources based on the language selected?

How can I do that if the application hasn’t even started? The icon is in the mobile screen… when you install the application.