AstroRender is a free Android application developed by Omega Centauri Software. It is an educational and reference program that allows users to explore a simulated sky with over 40,000 rendered stars up to magnitude 8. The program provides a fairly realistic brightness simulation, allowing users to rotate and zoom in on the stars.

While AstroRender is not meant to be a comprehensive astronomy program, it can be a relaxing way to explore the stars and try to identify constellations. The program does not label any of the stars, nor does it offer information on planets or deep-space objects. Additionally, the horizon is not shown.

AstroRender was created by the developer while figuring out how to best render stars for a more serious astronomy application. If you find any bugs while using this program, the developer encourages you to let them know. Overall, if you're looking for a way to unwind and explore the stars, AstroRender is definitely worth checking out!