Google Meet - Enterprise-friendly version of Google Hangouts
Storyheap - Manage your SnapChat and Instagram stories.
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.
Stori - The best way to analyse your Instagram Stories 📈 🦄
Messenger Video Calls - Facebook Messenger, now with HD video calls
Zuck.js - JavaScript library that lets you add Stories everywhere