How to Review iOS Localizations Without Rebuilding Every Language

How to Review iOS Localizations Without Rebuilding for Every Language

Rebuilding the app for each locale is a productivity trap. A better review flow injects locale at runtime and snapshots key screens in one sweep.

Step 1: Treat locale as an injectable runtime dependency

struct AppLocale {
    let identifier: String
}

@Observable final class LocaleStore {
    var current = AppLocale(identifier: "en")
}

Step 2: Drive UI previews through locale matrix

let locales = ["en", "ja", "zh-Hans", "es"]
for id in locales {
    runSnapshot(locale: id, screen: .pricing)
}

Step 3: Flag text overflow automatically

XCTAssertFalse(view.hasTruncatedLabels)

Pitfalls

• Hard-coding language in app launch arguments only.
• Reviewing localization manually on one device size.
• No automated overflow detection for long strings.

Validation

• One command generates screenshot set for all supported locales.
• Truncation failures are reported in CI.
• Review cycle no longer depends on repeated full builds.