This is one of the BEST apps I own. I have trouble falling asleep at night. When I plug in my headphones and place them under my pillow.... I am out like a light. This app is also useful when studying. I have used while studying for one of my certification tests to become a teacher. For someone who suffers from test anxiety, this app helped me pass both certification tests the first time. I recommend this app to ALL students, all teachers, and anyone who breaths oxygen.
TReed2215 about Brain Upgrade Premium - Improve Concentration and Relieve Stress