Note: The app automatically adds your iPlum signup country code in the “To” box when you start entering the phone number.
You can simple erase it and enter the international phone number you want to send text with + country code.
Example: Your iPlum signup country code is US (+1) and you want to send a text to UK number (+44). You will simply erase +1 in the “To” box and enter +44 with the UK number.
International SMS rates are available in the iPlum app settings.
How to make international calls using iPlum?