The Cosmo Laser show you in the sky where your phone is pointing.
This task works with any apps.
In this page we present a short selection of our favorite astronomy apps we consider of good quality, nice looking and reliable.
Each app have its pro and con depending of your taste but they all point star and celestial object in the sky.
Most of them for iPhone and Android for free.
Your smartphone must be equipped at least with compass in order to point in the sky.
Always check calibration of the compass before starting theses apps to get reliable pointing.