[baxtr]

Cool. Does anybody know an app where I can exercise like in the video?

[nkozyra]

Found this, but I'm sure any N-back will work:

http://brainscale.net/dual-n-back

Also, if you feel like working off of someone else's source:

https://sourceforge.net/projects/brainworkshop/files/brainwo...

Though it seems relatively simple to design.

[rajadigopula]

Yes. Search for dual-n-back in app store. I can go till 6 back without much effort. It gets tougher after.