I really wish this could work FULLY ? – Treehouse: Learn Programming and Design Review

This app is nice, clean and polished, however I have a 6s plus and it works about 50% of the time when trying to complete code challenges. It IS BEST FOR WATCHING THE VIDEOS, other than that it crashes! Plz fix this issue I really want it to work especially since this is a programming learning application that I pay a monthly membership for!! ?
Review by Coneyisld on Treehouse: Learn Programming and Design.