OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Smoothboard Air - Smoothboard Air is a collaborative interactive whiteboard application for iPads and Android devices that revolutionizes interaction in lecture rooms.
Snagit - Screen Capture Software for Windows and Mac
Groupboard - Free collaborative online whiteboard, web conferencing and online tutoring software that can be embedded in your own website. Used by many online tutors, schools and universities.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
RealtimeBoard - RealtimeBoard is an online collaboration software created as a team collaboration and online brainstorming tool. It's super easy to use & free!