Used to be supercool app. Grandy loved it when open and turned to sky would show constellations etc and move across sky it moved with your every turn.. NOW ITS A DUD. My tablets a couple years older and it did not work. Only a static screen. I dumped and reloaded app and zero. Its not live like it used to be.. i can hold a book for same effect.. thanks but i be moving on to something better.