SkillUpCity is modern education platform which allows anyone to create their own Online School within several minutes. Main features of SkillUpCity is: https://www.skillupcity.com/en-us/skillup-city-intro.html
For Interactive Course which is kind of Video Streaming Course, some Users need an App to join the course for mobility and convenience. This App allows Users to do that as long as they can provide correct Course ID and Password created by the teacher hosting the class.