Going to do phase 1 on the 18th as well. They said that we shouldn't but any of those apps to practice for the FEAST teste, since they did not sponsor any of those apps. Things that are evaluated you cannot achieve by practicing.
From what I have seen around this fórum, you can play IQ games and tetris to get your brain kind of used to the way of thinking that the teste requires...
Hope to see you there!