Proof

react-native-localize

the published react-native-localize JS runs unchanged over RNLocalize. For the shared single language and region, iOS currency exports reuse the Foundation-derived region table and return USD only when the region has no currency; Android keeps its prior export. Multiple preferred languages and separate OS locale preferences are unmeasured.
95%
API coverage
No visual proof cases have been published for this package yet. The registry summary below describes what the compat layer implements.
Working (16)
getLocalesgetNumberFormatSettingsgetCalendargetCalendarsgetCurrenciesgetCountrygetTemperatureUnitgetTimeZoneuses24HourClockusesMetricSystemusesAutoDateAndTimeusesAutoTimeZoneaddEventListenerremoveEventListenerfindBestLanguageTagfindBestAvailableLanguage
Missing
locale change events never fire (browser doesn't emit them)