HideMyFaceTime - Stop watching your own face during FaceTime calls.
Daily.co for Intercom - Free video calls & screen shares embedded in Intercom
ShareAccount - Share your account without giving out your password
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
WING - A phone carrier that is actually nice to you.
CallKite - Your website’s video call center in just one click.