After seeing an App Store with more than one application that had the iPhone processor at 99% use to get the device to heat up (and self-destruct by the way) now we get the summer version of the invention.
As the iPhone cannot be cooled to temperatures that give us cool, what the application does is simulate that the pipes that come out freeze and touch a virtual waterfall, which is not much for 0,79 euritos that is worth as a good chorra application that it is.
Is this worth spending the money on? Well no, but each one earns it with their sweat and spends it on what they want ...
AppStore | Hand cooler
I do not know how they support such useless applications.