Great app if not for loud, piercing tones.

I just started using this app today to brush up on my algebra before returning to school. Im really enjoying it so far and it seems comprehensive. I left off a star because it doesnt appear that you can adjust the sounds in the app. When you get the answer right in the self-test section, theres a piercing "ding." It hurts my ears, and even muting my phone doesnt do anything. It makes me want to skip the self-tests, which are important for practice. Fix that, and this would be a 5 star review.

Sunnysmileemmy about Algebra