Hope to see more and more applications show up - through the API to achieve a variety of personalized scenarios 
This could be very helpful.
I don’t use WhatsApp, and I wouldn’t start just for this. Once you are in the Node-RED environment, however, there are several possible alternatives. These include Telegram, Pushbullet, and others. I haven’t tested them on the iHost, but I have been able to send e-mail and use my mobile phone provider’s e-mail-to-sms gateway to send text messages.
I also used WhatApp with Node Red
but…now I use Telegram…it’s much better