I have to agree with some of the reviews that are mentioned here. The app loads slowly quite often and the page sometimes glitches and you are not able to see the entire page. If you go back and to try to adjust the page it does not stick. If you select an answer and the page is still not cooperating your answer will be incorrect. My daughter selected an answer for a test of 5 questions and it was marked wrong because some how the answer she chose was not saved. Instead of an 80% for 1 wrong she was marked at 60% because one of her correct responses wasn't saved. Give me a break with this. Who has time to just make this up? I know I don't. How many more negative reviews do you need before this educational app is restructured? Also, I advised my daughter moving forward to screenshot all her answers before submitting her work so she gets the credit for work that is incorrectly marked.