On of my favourite services, Lumosity just hit the Google Play. I wrote about them back in March, it’s an app designed by neuroscientists to train memory, attention as well as many others aspects.
Been using it almost daily for 5 months and have noticed a difference, I remember things more accurately, precision and attention improved too. I had to be on my laptop or desktop to work on my dose of exercises, which was an issue. With the Android app being released I can train on the go.[Google Play]