I am working on building the Teaching app for iOS.

It will literally be called "Teaching" and it will be for teachers to collect youtube videos, articles etc. into a flipped classroom curriculum. Also will let them design quizzes to take in class. If the user switches the app to the background, it alerts the teacher to cheating. And so on. An all-in one solution.

By the way, if you want to join me on this project, email me (the button is at https://qbix.com/about)