WhatsApp Groups are getting more and more popular during the current lockdowns. I have seen family groups, residents' associations, help for the vulnerable etc. All these depend on setting up and/or joining a WhatsApp group. This is very powerful - everyone gets to see all the messages, including photos, video etc. This is not a voice calling system. I was really disappointed to find that Portal does not support WhatsApp groups, where one can use them on smart phones and desktop computers.