Create a similar version of Quizlet (Mobile only: iPhone/Android)

I want to create an app to help my students study that is very similar to Quizlet. I want the theme to be flashcards and everything can be the same, but the development of the flashcards for the user will be slightly different and the actual way to study the cards will be different.

https://quizlet.com/latest
https://quizlet.com/mobile