BigBlueButton
5.0 ho linaleli tse 5 (ho ipapisitsoe le tlhahlobo e le 1)
BigBlueButton ke sistimi e bulehileng ea liboka tsa marang-rang e etselitsoeng ho ithuta inthaneteng. BigBlueButton ke sesebelisoa se sebelisoang ke barupeli, se ba thusang ho fihlella Litsamaiso tsa Tsamaiso ea ho Ithuta, lisebelisoa tsa ho kopanela le li-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.