BigBlue Button
5.0 sa 5 bituin (batay sa 1 pagsusuri)
Ang BigBlueButton ay isang open source na web conferencing system na idinisenyo para sa online na pag-aaral. Ang BigBlueButton ay isang tool na ginagamit ng mga instructor, na tumutulong sa kanila na ma-access ang Learning Management System, mga tool sa pakikipag-ugnayan at analytics.
You can install BigBlueButton on your own server since it is open-source. There are definitely no ads, but they implemented this “Learning Analytics Dashboard” that is about analyzing the activity from the participants. That tool is used in schools and not for profit purposes I guess. Either way it is a trade-free video conferencing software.