Very poor quality. Not worth paying for. App should be free
If I would have known how cheaply made this app was, I would have never decided to spend money on it. I have found multiple problems that are completely wrong. The correct answer is labeled as the wrong answer. Luckily I am not a beginner and can spot these things. If I were barely learning algebra I would be in deep trouble since some of the se simple slope problems are teaching you the opposite thing. Aside from the problems giving incorrect answers I also found many grammar issues. That was my first flag since I noticed these issues before going into solving problems but decided to give it a chance since I know it was a real person that created this app. Shortly after this is when I noticed there were problems with incorrect answers. I should have followed my initial instinct. If the creators of this app were careless over their grammar then of course the rest of the app would be of low quality. This should be free.