I downloaded WhatsApp but uninstalled it after it pretty much wouldn't let me do anything unless I shared all my "contacts" with it. They don't need that info for anything good. My elderly mom gets enough spam calls from all over the globe trying to scam her. We have GoogleFi so we are usually covered anywhere we go with no outrageous fees.
Advantage of WhatsApp is that you can call to a non-US phone for no charge....as long as they have the app[/quote]
All that means is anybody in your regular contact list will automatically show up in your whatsapp contact list as long as they have the app. I always put the number in my regular contact list and then check to see if it shows up on whatsapp. No problems.
