Cannot change answer now

I put this under bugs but it's a combination of all 4 topics. 

To begin, I noticed when I answered a question incorrectly today, that I couldn't change my answer. Once it was incorrect, that was it. Well done TouchSurgery!

However, I accidentally swiped back to to the previous slide and it let me correct my answer. 😑 I prefer the difficulty of not being able to change your answer in order to learn from it like the original app. 

🤔As for an idea.. ☝🏾💡😃 I was thinking maybe on the iPhone, a smaller font or more visible text for each question. The drop down gets somewhat annoying and eventually I don't want to click it. It makes me get the sense of, "I'm going learn the answers to the questions, rather than the reason I'm selecting that answer."

You rock TouchSurgery!