Well the Nay Sayers were right

I tried calibrating with the figure 8 and then turned the sensitivity all the way up. Still nothing anywhere in my kitchen nor workshop.
I deleted it until repaired :(
And for you idiot assumers .... I am using an iPhone 4. And it did register my fridge at all ( alot of magnets on there )

Rocket062 about Metal Detector (PRO), v1.1