Quick tests to assess the functionality of a smartphonetouchscreen.

An app that displays the projections of device's accelerationvector on 3 axes.

A 3D simulator of the mysterious stars called black holes and oftheir dynamics.

Moon phases, surface luminosity and the official moonrise / moonsettimes

A 3D viewer to explore the planets of our Solar System in highresolution.

A free 3D simulation of the seven major moons of Saturn in highdefinition

A nice app that displays the maximum and the current values of theUV index.

An accurate magnetic field detector that features a 3D indicator ofthe field.