Hidden iPhone App

One day having a calm walk at my neighborhood I saw a strange yard sale with nobody at it.So I went there.There was only like one item at the table a iPhone.So it said it was free.I bot it! There was something strange about this iPhone.No camera,no charger,and also no home button! So I turn it on the time was wrong it was 1:40 but it says 5:08.I slide the unlock there was some games and one app.It was call nothing.No icon no name I open it.It just turn off by it self.Good thing it was jailbroken (If you know what that means) it had iFile so I find that app that had no name.There was some sounds and some textures.i looked at the textures.I was creep it out the textures had blood and even scary photos for some reason.