NSLocale region, language and currency

  
NSLocale *locale = [NSLocale currentLocale];
// [locale localeIdentifier]  fr_FR (i'm in france)
NSLog(@"current locale: %@", locale.localeIdentifier);

NSArray* preferredLanguages = [NSLocale preferredLanguages];
NSLog(@"preferredLanguages: %@", preferredLanguages);
// en,fr ( the interface is in english )
  
NSString* code = [locale objectForKey:NSLocaleCurrencyCode];
NSLog(@"NSLocaleCurrencyCode: %@", code);
// EUR (based onlocaleIdentifier)

NSNumberFormatter *currencyFormatter = [[NSNumberFormatter alloc] init];
[currencyFormatter setLocale:[NSLocale currentLocale]];
[currencyFormatter setMaximumFractionDigits:2];
[currencyFormatter setMinimumFractionDigits:2];
[currencyFormatter setAlwaysShowsDecimalSeparator:YES];
[currencyFormatter setNumberStyle:NSNumberFormatterCurrencyStyle];
  
NSNumber *someAmount = [NSNumber numberWithFloat:5.00];
NSString *stringAmount = [currencyFormatter stringFromNumber:someAmount];
  
NSLog(@"%@",stringAmount);
//  5,00 €