What's Up! is an educational Android application designed to help users identify various celestial and aerial phenomena in the sky. Whether it's a star, planet, airplane, satellite, or meteor, this app guides users through a simple question-and-answer process to determine what they are observing. The app includes illustrative pictures and detailed descriptions to enhance understanding of each sighting.

The application is user-friendly and encourages users to explore the night sky while providing interesting background information about each identified object. This not only aids in recognizing natural and man-made phenomena but also allows users to share their experiences on social networks. Ideal for astronomy enthusiasts and casual observers alike, What's Up! makes sky watching an engaging and informative experience.