ID a Mac app

[TriedandTested]

I was in the Apple store on Monday and saw a guy playing with an app that seems to put his running applications in some sort of star field...one that you could scroll in and out off like flying through space!

Any ideas what it was?

 

[TriedandTested]

Never used TimeMachine so not sure if it's that. I remember seeing two large up and down arrows that when clicked went forward and backward through the 'starfield' and what looks like windows/files.

It's not Sapiens from looking at their video.

EDIT: ok, looks like it's TimeMachine

I do have it, but never used it. Are each of those just various timed backups?