Astrophysics I is an educational application focusing on the solar system, designed as the first part of a series of three astronomy apps. The app offers over 90 screens of information on the solar system, including more than 40 3D animations to simplify astrophysics concepts.

For educators, the app provides a feature to connect an iPad to a video projector, enabling them to showcase the animations to students in a classroom setting.

The content covers a wide range of topics including mathematics, mechanics, coordinate systems, time measurement, gravity, orbits, Kepler's laws, the solar system, physical and astronomical constants, as well as additional references like books and websites.