Google Meet - Enterprise-friendly version of Google Hangouts
Raycast - Fastest way to control Jira, GitHub and other web apps
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.
Looksy for iMessage - Live video chat stickers
Messenger Video Calls - Facebook Messenger, now with HD video calls
Screens - GNU Screen.