What programming was used in writing the sololearn mobile app

Question

what language is sololearn written in?

Answer 1

I don't know but phone games are normally made with java or c# or C++. if you are asking because you want to make a game you should learn c# because then you can use unity which is very good for making phone games.

Answer 2

This is Gamification App (not a game but using concept of the game), means you can also use HTML5 (Hybrid) application: HTML + JavaScript + CSS