The GameLeap website is great and the video guides are very in-depth and helpful. The coaches in each video obviously know what they are talking about and they explain the logic behind everything. I definitely feel like my game knowledge has improved since I have started using GameLeap.
However, the mobile app is incredibly buggy. For starters, the app logs you out every time you close it or it has been in the background for a while. It is so annoying to stop using the app for 10 minutes and then have to re-login every time you open it back up. Please fix this.
Second, the video-playing program they use does not work very well. I find that very frequently when you start a video in portrait mode and then rotate your phone, the video does not always rotate with it. You sometimes have to close the video and restart it to get it to rotate to landscape format. Also, when you go to your home screen while a video is playing and then open it back up to resume, the pause/play and skip buttons do not even work any more. You once again have to close the video and open it back up just in order for the play button to work again!
Again, the GameLeap videos themselves are good quality, but I recommend using the desktop website because the mobile app is annoying and feels poorly made.