Study after study have been unable to prove mental improvement as result of playing electronic games. Lumosity claims differently. As much as I would like to believe them, I find their billing deceptive. I signed up during Cyber Monday, and they kept sending better and better offers, without making it clear that each offer is not independent, but added to the previous charges.
If their billing is misleading, how can one trust their claims?
That being said, their train game is both addictive and fun, for which I added one star to my rating.