ios-localization

Localize iOS 26+ apps using String Catalogs, modern string types, FormatStyle, and RTL-aware layout. Localization mistakes cause App Store rejections in non-English markets, mistranslated UI, and broken layouts. Ship with correct localization from the start.

String Catalogs replaced .strings and .stringsdict files starting in Xcode 15 / iOS 17. They unify all localizable strings, pluralization rules, and device variations into a single JSON-based file with a visual editor.

Xcode adds discovered keys to the String Catalog automatically. Mark translations as Needs Review, Translated, or Stale in the editor.

Implement, review, or improve localization and internationalization in iOS/macOS apps — String Catalogs (.xcstrings), LocalizedStringKey, LocalizedStringResource, pluralization, FormatStyle for numbers/dates/measurements, right-to-left layout, Dynamic Type, and locale-aware formatting. Use when adding multi-language support, setting up String Catalogs, handling plural forms, formatting dates/numbers/currencies for different locales, testing localizations, or making UI work correctly in RTL languages like Arabic and Hebrew. Source: dpearson2699/swift-ios-skills.