DefaultCountryDetector

Detects the country from device signals only: SIM → network → locale settings.

This is the same ladder the library has always used (previously com.ezzy.ccp.utils.CountryDetector on Android), behind the CountryDetector interface, reporting which signal won, and off the main thread.

Why these signals, in this order

The SIM's registered country is the strongest available claim about where the user actually is. The attached network is next, and can differ while roaming. The device locale is last and weakest — plenty of people run an English (US) device in Nairobi — so it is used only as a fallback, and reported as Based on your device language rather than as a location claim.

Per platform

• Android reads TelephonyManager.simCountryIso and networkCountryIso, then the configuration locale and the default locale. Create it with DefaultCountryDetector(context).

• iOS has no public SIM or network country API any more (CoreTelephony's carrier properties have returned placeholder values since iOS 16), so it goes straight to the user's Region setting — which on iOS is an explicit choice, and a better signal than an Android locale. Create it with DefaultCountryDetector().

From common code, rememberDefaultCountryDetector builds the right one for the platform.

No location permission is requested or required on either platform.