When you have done with all your usual trivialities on your iPhones and iPads, think of creating some beautiful fractal to relax and delve in a mathematic field so unknown that if you zoom enough you will be looking at fractal areas that nobody else ever looked at! [guaranteed.—Ed.]

Chromatic Chaos from Ardeasoft can help you in the endeavour, since you can zoom literally billions of times and get fractals comparable in size with Jupiter’s orbit.

Fractals can be saved in a gallery, or images can be saved in the photo album. iPhones 4 get full treatment for the Retina display.

Galactic-size fractals, but price stays tiny: just US$ 0.99, € 0.79.