Is this HUD app useful?

Hello,
I'm a new one in this.
Recently I found an App that will increase my winner percentage.
It can calculator your win rate and help you make the choose call or fold.
i wonder if this is helpful did you guys try this?
Here is the intro video :You can download in googleplay https://play.google.com/store/apps/details?id=com.panda.pokerhelper