Hi dude, I'm also looking for a good app for conferences. I have friends, family and business colleagues, now I use zoom as an application to do video conferencing with friends, family or with my colleagues. With Zoom we can communicate with 100 people directly for 40 minutes.
Zoom can also be used in almost any operating system.
I am using Zoom version 5.2.
Friends can visit it here:
https://www.downloadzoomfree.com/
They have great applications for all platforms. really understand. Greetings )