What programs does an English tutor need in 2018?

Question

Skype

Skype is buggy after Microsoft (there is a connection, Echo does not pick up the phone and that's it), is it the most important thing in the work of a tutor?
Target audiotoria: teenagers, schoolchildren

Answer 1

others are not buggy

Answer 2

In addition to Skype, there is also Zoom, Spigo and a bunch of other applications and services.

Answer 3

Skype is buggy after Microsoft

Needed: Skype in a Microsoft account works as an application and as a web service without problems.