private void GoToWazeIOS() { if (phoneService.CanOpenUrl("waze://")) { string Latitudestr = Latitude.ToString().Replace(phoneService.CurrentCulture.NumberFormat.CurrencyDecimalSeparator, "."); string Longitudestr = Longitude.ToString().Replace(phoneService.CurrentCulture.NumberFormat.CurrencyDecimalSeparator, "."); phoneService.OpenUrl(string.Format(AppConfigurations.WazeNavigationUrl, Latitudestr, Longitudestr)); } else { phoneService.OpenUrl("http://itunes.apple.com/us/app/id323229106"); } }