Ring4 Meeting - Dead simple video conferencing - free, in browser
Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Fellow.app - A manager’s co-pilot for 1:1s, meetings, feedback & goals 🚀
Parse - Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.
openmeet - Account free video conferencing with a rooms component that lets you use VC within a physical meeting room. The server can also be hosted in your own cloud for extra privacy/security.
AnyPresence - AnyPresence is an Enterprise Backend as a Service for mobile app development and API augmentation.