5 stars: Absolutely amazing. Extremely well designed. I have never used better training app with such nice graphics. I think the team behind this app is Genius After using this app for few months. I am still considering one of the best apps on the Internet. My brain works sharper and more efficient. I wish I could have more time to train myself.
4 stars: I would love it if this game had more free activities. They are all very good and I think the proficiency leveling is accurate, offers good challenges and insights and scores fairly. I think that the inability to purchase on monthly or semi-monthly memberships is, however, discouraging. While all of the activities available are high quality, it can become boring quickly.
5 stars: By far, the best app that I installed. I became a pro member not because I want the content (of course, it will be way much better), it's because this app is helping me a lot, and I want that to continue. This app is complete, even if you don't pay it. If I had more money, I would've paid the entire price.
3 stars: The mathematics training and teaching is quite good, training you to do snap addition, division, multiplication and so on, while providing tips for how to do them better. The vocabulary, grammar and word memorization/corrections sections are hit-or-miss. Some are good, helping you fine tune your writing or expand your vocab. Some of them rely on trickery or vague wording to serve as \
5 stars: Love the games, they really do...