I download this app to practice pharmacology but of course, right when I am using it to practice before my test, it starts glitching. When I shift the page up and down, sometimes the next/previous buttons disappear, so instead of moving on to the next question, I am forced to go back to the main menu to start the test over again just so I can get the options to hit the “next” button for the next question to appear. Now it will just freeze and I am unable to click on anything. It’s very frustrating. I will keep the app for a few more weeks purely off the fact the questions are good(only reason I gave 3 stars), but if they don’t fix this, I will delete it because it’s too much trouble.