PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
Google Duo - Google's answer to Facetime, high-quality video calling on iOS and Android.
Clever - syncing between education applications for K-12 schools
GoRemote - A free & simple yet powerful European based solution to go remote. Video & audio conferences, screen sharing & chat with end to end encryption. Keep your team close and productive
Claroline - Claroline is a collaborative eLearning and eWorking platform.
Around - Find people to hang out with.