Mobile Application
Okay, so today I'm here to recommend an Android application that I found really fucking great, and with which I would like to suggest that you spend at least half an hour a day, since it exercises the brain a lot and helps keep an agile mind.
The app itself addresses six main fields of the brain such as Attention, Memory, Calculation, Analysis, Precision and Response Speed.
To do this, it has 96 different games to test you, both field by field and in a global exam where it averages you.
I'm still testing it but I think it also has a ranking and statistics online.
Seriously, take a look.