aso-cross-localization

App Store cross-localization ASO — expand one storefront's keyword footprint by loading keywords into the OTHER localizations that storefront also indexes (the US indexes English-US + 9 secondary locales). Covers the two indexing rules (each word counts once across all locales; phrases never combine across locales), Title>Subtitle>keyword-field ranking weight, keyword-first title ordering for unestablished brands, which secondary locales to add, and a char-count/duplicate validator. Use when planning App Store keywords or ASO, deciding which localizations to add, writing an app's Title/Subtitle/keyword fields, trying to raise impressions, or when the user mentions cross-localization, keyword indexing, secondary locales, or App Store Connect metadata.